portage-ng / portage / mail-mta / exim / 4.100.1
portage-ng glsa
12 advisories reference mail-mta/exim · none place version 4.100.1 in a vulnerable range
▸ GLSA 202608-07 Exim: Multiple Vulnerabilities this version unaffected high local and remote 2026-08-14

Multiple vulnerabilities have been found in Exim, the worst of which allows arbitrary code execution.

Announced
2026-08-14
Revised
2026-08-14
Access
local and remote
Bugs
#938214 #952139 #974785
Advisory
https://security.gentoo.org/glsa/202608-07

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.99.4>= 4.99.4

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

Multiple vulnerabilities have been discovered in Exim. 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 Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.99.4"

References

▸ GLSA 202402-18 Exim: Multiple Vulnerabilities this version unaffected high remote 2024-02-18

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

Announced
2024-02-18
Revised
2024-02-18
Access
remote
Bugs
#914923 #921520
Advisory
https://security.gentoo.org/glsa/202402-18

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.97.1>= 4.97.1

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

Multiple vulnerabilities have been discovered in Exim. 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 Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.97.1"

References

▸ GLSA 202105-01 Exim: Multiple vulnerabilities this version unaffected high local, remote 2021-05-04

Multiple vulnerabilities have been found in Exim, the worst of which allows remote attackers to execute arbitrary code.

Announced
2021-05-04
Revised
2021-05-04
Access
local, remote
Bugs
#786945
Advisory
https://security.gentoo.org/glsa/202105-01

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.94.2>= 4.94.2

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

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

Impact

A remote attacker, by connecting to the SMTP listener daemon, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition. Furthermore, a local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application or escalate privileges.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.94.2"

References

▸ GLSA 202003-47 Exim: Heap-based buffer overflow this version unaffected high remote 2020-03-20

A vulnerability in Exim could allow a remote attacker to execute arbitrary code.

Announced
2020-03-20
Revised
2020-03-20
Access
remote
Bugs
#701282
Advisory
https://security.gentoo.org/glsa/202003-47

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.92.3>= 4.92.3

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

It was discovered that Exim incorrectly handled certain string operations.

Impact

A remote attacker, able to connect to a vulnerable Exim instance, could possibly 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 Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.92.3"

References

▸ GLSA 201909-06 Exim: Multiple vulnerabilities this version unaffected high remote 2019-09-07

Multiple vulnerabilities have been found in Exim, the worst of which allows remote attackers to execute arbitrary code.

Announced
2019-09-07
Revised
2019-09-07
Access
remote
Bugs
#692394 #693494
Advisory
https://security.gentoo.org/glsa/201909-06

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.92.2>= 4.92.2

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

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

Impact

A remote attacker, by connecting to the SMTP listener daemon, could possibly 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 Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.92.2"

References

▸ GLSA 201906-01 Exim: Remote command execution this version unaffected high remote 2019-06-06

A vulnerability in Exim could allow a remote attacker to execute arbitrary commands.

Announced
2019-06-06
Revised
2019-06-06
Access
remote
Bugs
#687336
Advisory
https://security.gentoo.org/glsa/201906-01

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.92>= 4.92

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

A vulnerability was discovered in how Exim validates recipient addresses in the deliver_message() function.

Impact

A remote attacker could execute arbitrary commands by sending an email with a specially crafted recipient address to the affected system.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.92"

References

▸ GLSA 201803-01 Exim: Multiple vulnerabilities this version unaffected high remote 2018-03-06

Multiple vulnerabilities have been found in Exim, the worst of which allows remote attackers to execute arbitrary code.

Announced
2018-03-06
Revised
2018-03-06
Access
remote
Bugs
#638772 #647240
Advisory
https://security.gentoo.org/glsa/201803-01

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.90.1>= 4.90.1

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

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

Impact

A remote attacker, by connecting to the SMTP listener daemon, could possibly 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 Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.90.1"

References

▸ GLSA 201709-19 Exim: Local privilege escalation this version unaffected normal local 2017-09-24

A vulnerability in Exim may allow local users to gain root privileges.

Announced
2017-09-24
Revised
2017-09-24
Access
local
Bugs
#622212
Advisory
https://security.gentoo.org/glsa/201709-19

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.89-r1>= 4.89-r1

Background

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

Description

Exim supports the use of multiple “-p” command line arguments causing a memory leak. This could lead to a stack-clash in user-space and as result the attacker can, “clash” or “smash” the stack or another memory region, or “jump” over the stack guard-page.

Impact

A local attacker could obtain root privileges.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.89-r1"

References

▸ GLSA 201607-12 Exim: Arbitrary code execution this version unaffected normal local 2016-07-20

A local attacker could execute arbitrary code by providing unsanitized data to a data source or escalate privileges.

Announced
2016-07-20
Revised
2016-07-20
Access
local
Bugs
#517934 #576582
Advisory
https://security.gentoo.org/glsa/201607-12

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.87>= 4.87

Background

Exim is a message transfer agent (MTA) designed to be a a highly configurable, drop-in replacement for sendmail.

Description

Vulnerabilities have been discovered in Exim’s implementation of set-uid root and when using ‘perl_startup’. These vulnerabilities require a user account on the Exim server and a configuration that does lookups against files to which the user has edit access.

Impact

A local attacker could possibly execute arbitrary code with the privileges of the process, or escalate privileges.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.87"

References

▸ GLSA 201401-32 Exim: Multiple vulnerabilities this version unaffected high remote 2014-01-27

Multiple vulnerabilities were found in Exim, the worst of which leading to remote execution of arbitrary code with root privileges.

Announced
2014-01-27
Revised
2014-01-27 (revision 3)
Access
remote
Bugs
#322665 #348249 #353352 #366369 #439734
Advisory
https://security.gentoo.org/glsa/201401-32

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.80.1>= 4.80.1

Background

Exim is a highly configurable, drop-in replacement for sendmail.

Description

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

Impact

A remote attacker could possibly execute arbitrary code with root privileges, or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.80.1"

References

▸ GLSA 200501-23 Exim: Two buffer overflows this version unaffected high remote 2005-01-12

Buffer overflow vulnerabilities, which could lead to arbitrary code execution, have been found in the handling of IPv6 addresses as well as in the SPA authentication mechanism in Exim.

Announced
2005-01-12
Revised
2005-01-12
Access
remote
Bugs
#76893
Advisory
https://security.gentoo.org/glsa/200501-23

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*< 4.43-r2>= 4.43-r2

Background

Exim is an highly configurable message transfer agent (MTA) developed at the University of Cambridge.

Description

Buffer overflows have been found in the host_aton() function (CAN-2005-0021) as well as in the spa_base64_to_bits() function (CAN-2005-0022), which is part of the SPA authentication code.

Impact

A local attacker could trigger the buffer overflow in host_aton() by supplying an illegal IPv6 address with more than 8 components, using a command line option. The second vulnerability could be remotely exploited during SPA authentication, if it is enabled on the server. Both buffer overflows can potentially lead to the execution of arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All Exim users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.43-r2"

References

▸ GLSA 200405-07 Exim verify=header_syntax buffer overflow this version unaffected high remote 2004-05-14

When the verify=header_syntax option is set, there is a buffer overflow in Exim that allows remote execution of arbitrary code.

Announced
2004-05-14
Revised
2004-05-14
Access
remote
Bugs
#50217
Advisory
https://security.gentoo.org/glsa/200405-07

Affected packages

PackageArchVulnerableUnaffected
mail-mta/exim*<= 4.33>= 4.33-r1

Background

Exim is an highly configurable message transfer agent (MTA) developed at the University of Cambridge.

Description

When the option "verify = header_syntax" is used in an ACL in the configuration file, Exim is vulnerable to a buffer overflow attack that can be triggered remotely by sending malicious headers in an email message. Note that this option is not enabled in Exim's default configuration file.

Impact

This vulnerability can be exploited to trigger a denial of service attack and potentially execute arbitrary code with the rights of the user used by the Exim daemon (by default this is the "mail" user in Gentoo Linux).

Workaround

Make sure the verify=header_syntax option is not used in your exim.conf file.

Resolution

All users of Exim should upgrade to the latest stable version:

# emerge sync

# emerge -pv ">=mail-mta/exim-4.33-r1"
# emerge ">=mail-mta/exim-4.33-r1"

References