net-irc/unrealircd-6.0.4.2-r1 — Security Advisories

▸ GLSA 202608-25 UnrealIRCd: Denial of service this version unaffected low remote 2026-08-26

A vulnerability has been discovered in UnrealIRCd, possibly allowing denial of service.

Announced: 2026-08-26
Revised: 2026-08-26
Access: remote
Bugs: #832272
Advisory: https://security.gentoo.org/glsa/202608-25

Affected packages

Package	Arch	Vulnerable	Unaffected
net-irc/unrealircd	*	< 6.0.2	>= 6.0.2

Background

UnrealIRCd is an Internet Relay Chat (IRC) daemon.

Description

A vulnerability has been discovered in UnrealIRCd. Please review the CVE identifier referenced below for details.

Impact

An attacker may be able to achieve denial of service.

Workaround

There is no known workaround at this time.

Resolution

All UnrealIRCd users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/unrealircd-6.0.2"

▸ GLSA 201006-21 UnrealIRCd: Multiple vulnerabilities this version unaffected high remote 2010-06-14

Multiple vulnerabilities in UnrealIRCd might allow remote attackers to compromise the "unrealircd" account, or cause a Denial of Service.

Announced: 2010-06-14
Revised: 2010-06-14 (revision 2)
Access: remote
Bugs: #260806 #323691
Advisory: https://security.gentoo.org/glsa/201006-21

Affected packages

Package	Arch	Vulnerable	Unaffected
net-irc/unrealircd	*	< 3.2.8.1-r1	>= 3.2.8.1-r1

Background

UnrealIRCd is an Internet Relay Chat (IRC) daemon.

Description

Multiple vulnerabilities have been reported in UnrealIRCd:

The vendor reported a buffer overflow in the user authorization code (CVE-2009-4893).
The vendor reported that the distributed source code of UnrealIRCd was compromised and altered to include a system() call that could be called with arbitrary user input (CVE-2010-2075).

Impact

A remote attacker could exploit these vulnerabilities to cause the execution of arbitrary commands with the privileges of the user running UnrealIRCd, or a Denial of Service condition. NOTE: By default UnrealIRCd on Gentoo is run with the privileges of the "unrealircd" user.

Workaround

There is no known workaround at this time.

Resolution

All UnrealIRCd users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/unrealircd-3.2.8.1-r1"

References

▸ GLSA 200803-30 ssl-cert eclass: Certificate disclosure this version unaffected normal remote 2008-03-20

An error in the usage of the ssl-cert eclass within multiple ebuilds might allow for disclosure of generated SSL private keys.

Announced: 2008-03-20
Revised: 2008-03-20
Access: remote
Bugs: #174759
Advisory: https://security.gentoo.org/glsa/200803-30

Affected packages

Package	Arch	Vulnerable	Unaffected
app-admin/conserver	*	< 8.1.16	>= 8.1.16
mail-mta/postfix	*	< 2.4.6-r2	>= 2.4.6-r2, >= 2.3.8-r1 (revision), >= 2.2.11-r1 (revision)
net-ftp/netkit-ftpd	*	< 0.17-r7	>= 0.17-r7
net-im/ejabberd	*	< 1.1.3	>= 1.1.3
net-irc/unrealircd	*	< 3.2.7-r2	>= 3.2.7-r2
net-mail/cyrus-imapd	*	< 2.3.9-r1	>= 2.3.9-r1
net-mail/dovecot	*	< 1.0.10	>= 1.0.10
net-misc/stunnel	*	< 4.21-r1	>= 4.21-r1, < 4.0
net-nntp/inn	*	< 2.4.3-r1	>= 2.4.3-r1

Background

The ssl-cert eclass is a code module used by Gentoo ebuilds to generate SSL certificates.

Description

Robin Johnson reported that the docert() function provided by ssl-cert.eclass can be called by source building stages of an ebuild, such as src_compile() or src_install(), which will result in the generated SSL keys being included inside binary packages (binpkgs).

Impact

A local attacker could recover the SSL keys from publicly readable binary packages when "emerge" is called with the "--buildpkg (-b)" or "--buildpkgonly (-B)" option. Remote attackers can recover these keys if the packages are served to a network. Binary packages built using "quickpkg" are not affected.

Workaround

Do not use pre-generated SSL keys, but use keys that were generated using a different Certificate Authority.

Resolution

Upgrading to newer versions of the above packages will neither remove possibly compromised SSL certificates, nor old binary packages. Please remove the certificates installed by Portage, and then emerge an upgrade to the package.

All Conserver users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/conserver-8.1.16"

All Postfix 2.4 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.4.6-r2"

All Postfix 2.3 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.3.8-r1"

All Postfix 2.2 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.2.11-r1"

All Netkit FTP Server users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/netkit-ftpd-0.17-r7"

All ejabberd users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-im/ejabberd-1.1.3"

All UnrealIRCd users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/unrealircd-3.2.7-r2"

All Cyrus IMAP Server users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-2.3.9-r1"

All Dovecot users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/dovecot-1.0.10"

All stunnel 4 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/stunnel-4.21"

All InterNetNews users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-nntp/inn-2.4.3-r1"

References

CVE-2008-1383