portage-ng / portage / net-misc / asterisk / 22.11.0
portage-ng glsa
24 advisories reference net-misc/asterisk · none place version 22.11.0 in a vulnerable range
▸ GLSA 202601-04 Asterisk: Multiple Vulnerabilities this version unaffected high remote 2026-01-26

Multiple vulnerabilities have been discovered in Asterisk, the worst of which can lead to arbitrary code execution.

Announced
2026-01-26
Revised
2026-01-26
Access
remote
Bugs
#960930
Advisory
https://security.gentoo.org/glsa/202601-04

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 18.26.3>= 18.26.3

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced below for details.

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-18.26.3"

References

▸ GLSA 202412-03 Asterisk: Multiple Vulnerabilities this version unaffected high remote 2024-12-07

Multiple vulnerabilities have been discovered in Asterisk, the worst of which can lead to privilege escalation.

Announced
2024-12-07
Revised
2024-12-07
Access
remote
Bugs
#771318 #803440 #838391 #884797 #920026 #937844 #939159
Advisory
https://security.gentoo.org/glsa/202412-03

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 18.24.3>= 18.24.3

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced below for details.

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-18.24.3"

References

▸ GLSA 202101-10 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2021-01-12

Multiple vulnerabilities have been found in Asterisk, the worst of which could result in a Denial of Service condition.

Announced
2021-01-12
Revised
2021-01-12
Access
remote
Bugs
#753269 #761313
Advisory
https://security.gentoo.org/glsa/202101-10

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 13.38.1>= 13.38.1

Background

A Modular Open Source PBX System.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the security advisories referenced below for details.

Impact

An attacker could cause a possible Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-13.38.1"

References

▸ GLSA 202006-20 Asterisk: Root privilege escalation this version unaffected high local 2020-06-15

A vulnerability was discovered in Asterisk which may allow local attackers to gain root privileges.

Announced
2020-06-15
Revised
2020-06-15
Access
local
Bugs
#602722
Advisory
https://security.gentoo.org/glsa/202006-20

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 13.32.0-r1>= 13.32.0-r1

Background

A Modular Open Source PBX System.

Description

It was discovered that Gentoo’s Asterisk ebuild does not properly set permissions on its data directories. This only affects OpenRC systems, as the flaw was exploitable via the init script.

Impact

A local attacker could escalate privileges.

Workaround

Users should ensure the proper permissions are set as discussed in the referenced bugs. Do not run /etc/init.d/asterisk checkperms.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-13.32.0-r1"
▸ GLSA 201811-11 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2018-11-24

Multiple vulnerabilities have been found in Asterisk, the worst of which could result in a Denial of Service condition.

Announced
2018-11-24
Revised
2018-11-24
Access
remote
Bugs
#636972 #645710 #668848
Advisory
https://security.gentoo.org/glsa/201811-11

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 13.23.1>= 13.23.1

Background

A Modular Open Source PBX System.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the referenced CVE identifiers for details.

Impact

A remote attacker could cause a Denial of Service condition or conduct information gathering.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-13.23.1"

References

▸ GLSA 201710-29 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2017-10-29

Multiple vulnerabilities have been found in Asterisk, the worst of which allows remote execution of arbitrary shell commands.

Announced
2017-10-29
Revised
2017-10-29
Access
remote
Bugs
#629682 #629692 #633856
Advisory
https://security.gentoo.org/glsa/201710-29

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 11.25.3>= 11.25.3

Background

A Modular Open Source PBX System.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the referenced CVE identifiers for details.

Impact

A remote attacker could execute arbitrary code, cause a denial of service condition, or cause an unauthorized data disclosure by enticing a user to run malicious code.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-13.17.2"

References

▸ GLSA 201412-51 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2014-12-28

Multiple vulnerabilities have been found in Asterisk, the worst of which could lead to Denial of Service, bypass intended ACL restrictions or allow an authenticated user to gain escalated privileges.

Announced
2014-12-28
Revised
2014-12-28
Access
remote
Bugs
#530056 #532242
Advisory
https://security.gentoo.org/glsa/201412-51

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 11.14.2>= 11.14.2

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple unspecified vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced below for details.

Impact

Unauthenticated remote attackers can cause Denial of Service or bypass intended ACL restrictions. Authenticated remote attackers can gain escalated privileges.

Workaround

There is no known workaround at this time.

Resolution

All asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-11.14.2"

References

▸ GLSA 201411-10 Asterisk: Multiple Vulnerabilities this version unaffected normal remote 2014-11-23

Multiple vulnerabilities have been found in Asterisk, the worst of which could lead to Denial of Service.

Announced
2014-11-23
Revised
2014-11-23
Access
remote
Bugs
#523216 #526208
Advisory
https://security.gentoo.org/glsa/201411-10

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 11.13.1>= 11.13.1

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple unspecified vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could exploit the vulnerabilities to cause a man in the middle attack or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-11.13.1"

References

▸ GLSA 201406-25 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2014-06-25

Multiple vulnerabilities have been discovered in Asterisk, the worst of which could allow privileged users to execute arbitrary system shell commands.

Announced
2014-06-25
Revised
2014-06-25 (revision 2)
Access
remote
Bugs
#513102
Advisory
https://security.gentoo.org/glsa/201406-25

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 11.10.2>= 11.10.2, >= 1.8.28.2 (revision)

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers below for details.

Impact

A remote attacker that gains access to a privileged Asterisk account can execute arbitrary system shell commands. Furthermore an unprivileged remote attacker could cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk 11 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-11.10.2"

All Asterisk 1.8 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.28.2"

References

▸ GLSA 201405-05 Asterisk: Denial of service this version unaffected normal remote 2014-05-03

Multiple buffer overflows in Asterisk might allow remote attackers to cause a Denial of Service condition.

Announced
2014-05-03
Revised
2014-05-03
Access
remote
Bugs
#504180
Advisory
https://security.gentoo.org/glsa/201405-05

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 11.8.1>= 11.8.1, >= 1.8.26.1 (revision)

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers and Asterisk Project Security Advisories referenced below for details.

Impact

A remote attacker could possibly cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk 11.* users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-11.8.1"

All Asterisk 1.8.* users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.26.1"

References

▸ GLSA 201401-15 Asterisk: Multiple vulnerabilities this version unaffected high remote 2014-01-21

Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code.

Announced
2014-01-21
Revised
2014-01-21
Access
remote
Bugs
#449828 #463622 #482776 #494630
Advisory
https://security.gentoo.org/glsa/201401-15

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 11.7.0>= 11.7.0, >= 1.8.25.0 (revision)

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could execute arbitrary code with the privileges of the process, cause a Denial of Service condition, or obtain sensitive information.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk 11.* users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-11.7.0"

All Asterisk 1.8.* users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.25.0"

References

▸ GLSA 201209-15 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2012-09-26

Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code.

Announced
2012-09-26
Revised
2012-09-26
Access
remote
Bugs
#425050 #433750
Advisory
https://security.gentoo.org/glsa/201209-15

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.8.15.1>= 1.8.15.1

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been found in Asterisk:

  • An error in manager.c allows shell access (CVE-2012-2186).
  • An error in Asterisk could cause all RTP ports to be exhausted (CVE-2012-3812).
  • A double-free error could occur when two parties attempt to manipulate the same voicemail account simultaneously (CVE-2012-3863).
  • Asterisk does not properly implement certain ACL rules (CVE-2012-4737).

Impact

A remote, authenticated attacker could execute arbitrary code with the privileges of the process, cause a Denial of Service condition, or bypass outbound call restrictions.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.15.1"

References

▸ GLSA 201206-05 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2012-06-21

Multiple vulnerabilities in Asterisk might allow remote attackers to execute arbitrary code.

Announced
2012-06-21
Revised
2012-06-21
Access
remote
Bugs
#413353 #418189 #418191
Advisory
https://security.gentoo.org/glsa/201206-05

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.8.12.1>= 1.8.12.1

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been found in Asterisk:

  • An error in manager.c allows shell access through the MixMonitor application, GetVar, or Status (CVE-2012-2414).
  • An error in chan_skinny.c could cause a heap-based buffer overflow (CVE-2012-2415).
  • An error in chan_sip.c prevents Asterisk from checking if a channel exists before connected line updates (CVE-2012-2416).
  • An error in chan_iax2.c may cause an invalid pointer to be called (CVE-2012-2947).
  • chan_skinny.c contains a NULL pointer dereference (CVE-2012-2948).

Impact

A remote attacker could execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.12.1"

References

▸ GLSA 201203-21 Asterisk: Multiple vulnerabilities this version unaffected high remote 2012-03-28

Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code.

Announced
2012-03-28
Revised
2012-03-28
Access
remote
Bugs
#408431
Advisory
https://security.gentoo.org/glsa/201203-21

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.8.10.1>= 1.8.10.1

Background

Asterisk is an open source telephony engine and toolkit.

Description

Two vulnerabilities have been found in Asterisk:

  • The "milliwatt_generate()" function in app_milliwatt.c is vulnerable to a stack overrun (AST-2012-002).
  • The "ast_parse_digest()" function in utils.c is vulnerable to a stack-based buffer overflow (AST-2012-003).

Impact

A remote unauthenticated attacker could execute arbitrary code or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.10.1"

References

▸ GLSA 201202-06 Asterisk: Denial of service this version unaffected normal remote 2012-02-22

A vulnerability in Asterisk could allow a remote attacker to cause a Denial of Service condition.

Announced
2012-02-22
Revised
2012-02-22
Access
remote
Bugs
#399507
Advisory
https://security.gentoo.org/glsa/201202-06

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.8.8.2>= 1.8.8.2

Background

Asterisk is an open source telephony engine and toolkit.

Description

A vulnerability has been found in Asterisk's handling of certain encrypted streams where the res_srtp module has been loaded but video support has not been enabled.

Impact

A remote attacker could send a specially crafted SDP message to the Asterisk daemon, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.8.2"

References

▸ GLSA 201110-21 Asterisk: Multiple vulnerabilities this version unaffected high remote 2011-10-24

Multiple vulnerabilities in Asterisk might allow unauthenticated remote attackers to execute arbitrary code.

Announced
2011-10-24
Revised
2011-10-24
Access
remote
Bugs
#352059 #355967 #359767 #364887 #372793 #373409 #387453
Advisory
https://security.gentoo.org/glsa/201110-21

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.8.7.1>= 1.8.7.1, >= 1.6.2.18.2 (revision)

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced below for details.

Impact

An unauthenticated remote attacker may execute code with the privileges of the Asterisk process or cause a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All asterisk 1.6.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.6.2.18.2"

All asterisk 1.8.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.7.1"

References

▸ GLSA 201006-20 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2010-06-04

Multiple vulnerabilities in Asterisk might allow remote attackers to cause a Denial of Service condition, or conduct other attacks.

Announced
2010-06-04
Revised
2010-06-04
Access
remote
Bugs
#281107 #283624 #284892 #295270
Advisory
https://security.gentoo.org/glsa/201006-20

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.37>= 1.2.37

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been reported in Asterisk:

  • Nick Baggott reported that Asterisk does not properly process overly long ASCII strings in various packets (CVE-2009-2726).
  • Noam Rathaus and Blake Cornell reported a flaw in the IAX2 protocol implementation (CVE-2009-2346).
  • amorsen reported an input processing error in the RTP protocol implementation (CVE-2009-4055).
  • Patrik Karlsson reported an information disclosure flaw related to the REGISTER message (CVE-2009-3727).
  • A vulnerability was found in the bundled Prototype JavaScript library, related to AJAX calls (CVE-2008-7220).

Impact

A remote attacker could exploit these vulnerabilities by sending a specially crafted package, possibly causing a Denial of Service condition, or resulting in information disclosure.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.37"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since January 5, 2010. It is likely that your system is already no longer affected by this issue.

References

▸ GLSA 200905-01 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2009-05-02

Multiple vulnerabilities have been found in Asterisk allowing for Denial of Service and username disclosure.

Announced
2009-05-02
Revised
2009-05-02
Access
remote
Bugs
#218966 #224835 #232696 #232698 #237476 #250748 #254304
Advisory
https://security.gentoo.org/glsa/200905-01

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.32>= 1.2.32

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been discovered in the IAX2 channel driver when performing the 3-way handshake (CVE-2008-1897), when handling a large number of POKE requests (CVE-2008-3263), when handling authentication attempts (CVE-2008-5558) and when handling firmware download (FWDOWNL) requests (CVE-2008-3264). Asterisk does also not correctly handle SIP INVITE messages that lack a "From" header (CVE-2008-2119), and responds differently to a failed login attempt depending on whether the user account exists (CVE-2008-3903, CVE-2009-0041).

Impact

Remote unauthenticated attackers could send specially crafted data to Asterisk, possibly resulting in a Denial of Service via a daemon crash, call-number exhaustion, CPU or traffic consumption. Remote unauthenticated attackers could furthermore enumerate valid usernames to facilitate brute force login attempts.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.32"

References

▸ GLSA 200804-13 Asterisk: Multiple vulnerabilities this version unaffected normal remote 2008-04-14

Multiple vulnerabilities have been found in Asterisk allowing for SQL injection, session hijacking and unauthorized usage.

Announced
2008-04-14
Revised
2008-04-14
Access
remote
Bugs
#200792 #202733 #213883
Advisory
https://security.gentoo.org/glsa/200804-13

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.27>= 1.2.27

Background

Asterisk is an open source telephony engine and tool kit.

Description

Asterisk upstream developers reported multiple vulnerabilities:

  • The Call Detail Record Postgres logging engine (cdr_pgsql) does not correctly escape the ANI and DNIS arguments before using them in SQL statements (CVE-2007-6170).
  • When using database-based registrations ("realtime") and host-based authentication, Asterisk does not check the IP address when the username is correct and there is no password provided (CVE-2007-6430).
  • The SIP channel driver does not correctly determine if authentication is required (CVE-2008-1332).

Impact

Remote authenticated attackers could send specially crafted data to Asterisk to execute arbitrary SQL commands and compromise the administrative database. Remote unauthenticated attackers could bypass authentication using a valid username to hijack other user's sessions, and establish sessions on the SIP channel without authentication.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.27"

References

▸ GLSA 200802-11 Asterisk: Multiple vulnerabilities this version unaffected high remote 2008-02-26

Multiple vulnerabilities have been found in Asterisk.

Announced
2008-02-26
Revised
2008-02-26
Access
remote
Bugs
#185713
Advisory
https://security.gentoo.org/glsa/200802-11

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.21.1-r1>= 1.2.17-r1 (revision), >= 1.2.21.1-r1

Background

Asterisk is an open source telephony engine and tool kit.

Description

Multiple vulnerabilities have been found in Asterisk:

  • Russel Bryant reported a stack buffer overflow in the IAX2 channel driver (chan_iax2) when bridging calls between chan_iax2 and any channel driver that uses RTP for media (CVE-2007-3762).
  • Chris Clark and Zane Lackey (iSEC Partners) reported a NULL pointer dereference in the IAX2 channel driver (chan_iax2) (CVE-2007-3763).
  • Will Drewry (Google Security) reported a vulnerability in the Skinny channel driver (chan_skinny), resulting in an overly large memcpy (CVE-2007-3764).
  • Will Drewry (Google Security) reported a vulnerability in the IAX2 channel driver (chan_iax2), that does not correctly handle unauthenticated transactions using a 3-way handshake (CVE-2007-4103).

Impact

By sending a long voice or video RTP frame, a remote attacker could possibly execute arbitrary code on the target machine. Sending specially crafted LAGRQ or LAGRP frames containing information elements of IAX frames, or a certain data length value in a crafted packet, or performing a flood of calls not completing a 3-way handshake, could result in a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.17-r1"

References

▸ GLSA 200704-01 Asterisk: Two SIP Denial of Service vulnerabilities this version unaffected normal remote 2007-04-02

Asterisk is vulnerable to two Denial of Service issues in the SIP channel.

Announced
2007-04-02
Revised
2007-04-02
Access
remote
Bugs
#171467
Advisory
https://security.gentoo.org/glsa/200704-01

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.14-r2>= 1.2.14-r2, >= 1.0.12-r2 (revision)

Background

Asterisk is an open source implementation of a telephone private branch exchange (PBX).

Description

The Madynes research team at INRIA has discovered that Asterisk contains a null pointer dereferencing error in the SIP channel when handling INVITE messages. Furthermore qwerty1979 discovered that Asterisk 1.2.x fails to properly handle SIP responses with return code 0.

Impact

A remote attacker could cause an Asterisk server listening for SIP messages to crash by sending a specially crafted SIP message or answering with a 0 return code.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose net-misc/asterisk

Note: Asterisk 1.0.x is no longer supported upstream so users should consider upgrading to Asterisk 1.2.x.

References

▸ GLSA 200703-14 Asterisk: SIP Denial of service this version unaffected normal remote 2007-03-16

Asterisk is vulnerable to Denial of Service in the SIP channel.

Announced
2007-03-16
Revised
2007-03-16
Access
remote
Bugs
#169616
Advisory
https://security.gentoo.org/glsa/200703-14

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.14-r1>= 1.2.14-r1, >= 1.0.12-r1 (revision)

Background

Asterisk is an open source implementation of a telephone private branch exchange (PBX).

Description

The MU Security Research Team discovered that Asterisk contains a NULL-pointer dereferencing error in the SIP channel when handling request messages.

Impact

A remote attacker could cause an Asterisk server listening for SIP messages to crash by sending a specially crafted SIP request message.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose net-misc/asterisk

Note: Asterisk 1.0.x is no longer supported upstream so users should consider upgrading to Asterisk 1.2.x.

References

▸ GLSA 200610-15 Asterisk: Multiple vulnerabilities this version unaffected high remote 2006-10-30

Asterisk is vulnerable to the remote execution of arbitrary code or a Denial of Service.

Announced
2006-10-30
Revised
2007-01-30 (revision 2)
Access
remote
Bugs
#144941 #151881
Advisory
https://security.gentoo.org/glsa/200610-15

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.2.13, < 1.0.12>= 1.2.13, >= 1.0.12 (revision)

Background

Asterisk is an open source implementation of a telephone private branch exchange (PBX).

Description

Asterisk contains buffer overflows in channels/chan_mgcp.c from the MGCP driver and in channels/chan_skinny.c from the Skinny channel driver for Cisco SCCP phones. It also dangerously handles client-controlled variables to determine filenames in the Record() function. Finally, the SIP channel driver in channels/chan_sip.c could use more resources than necessary under unspecified circumstances.

Impact

A remote attacker could execute arbitrary code by sending a crafted audit endpoint (AUEP) response, by sending an overly large Skinny packet even before authentication, or by making use of format strings specifiers through the client-controlled variables. An attacker could also cause a Denial of Service by resource consumption through the SIP channel driver.

Workaround

There is no known workaround for the format strings vulnerability at this time. You can comment the lines in /etc/asterisk/mgcp.conf, /etc/asterisk/skinny.conf and /etc/asterisk/sip.conf to deactivate the three vulnerable channel drivers. Please note that the MGCP channel driver is disabled by default.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.13"

References

▸ GLSA 200606-15 Asterisk: IAX2 video frame buffer overflow this version unaffected high remote 2006-06-14

Asterisk contains a bug in the IAX2 channel driver making it vulnerable to the remote execution of arbitrary code.

Announced
2006-06-14
Revised
2006-06-14
Access
remote
Bugs
#135680
Advisory
https://security.gentoo.org/glsa/200606-15

Affected packages

PackageArchVulnerableUnaffected
net-misc/asterisk*< 1.0.11_p1>= 1.0.11_p1

Background

Asterisk is an open source implementation of a telephone private branch exchange (PBX).

Description

Asterisk fails to properly check the length of truncated video frames in the IAX2 channel driver which results in a buffer overflow.

Impact

An attacker could exploit this vulnerability by sending a specially crafted IAX2 video stream resulting in the execution of arbitrary code with the permissions of the user running Asterisk.

Workaround

Disable public IAX2 support.

Resolution

All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.0.11_p1"

References