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Gentoo Linux Security Advisory GLSA 202305-09

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                                       https://security.gentoo.org/  

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Severity: Normal
Title: syslog-ng: Denial of Service
Date: May 03, 2023
Bugs: #891941
ID: 202305-09

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Synopsis

A denial of service vulnerability was discovered in rsyslog related to
syslog input over the network.

Background

syslog replacement with advanced filtering features.

Affected packages

-------------------------------------------------------------------  
 Package              /     Vulnerable     /            Unaffected  
-------------------------------------------------------------------  

1 app-admin/syslog-ng < 3.38.1 >= 3.38.1

Description

An integer overflow in the RFC3164 parser allows remote attackers to
cause a denial of service via crafted syslog input that is mishandled by
the tcp or network function.

Impact

Attackers with access to input syslogs over syslog-ng’s network
functionality can cause a denial of service.

Workaround

There is no known workaround at this time.

Resolution

All syslog-ng users should upgrade to the latest version:

emerge --sync

emerge --ask --oneshot --verbose “>=app-admin/syslog-ng-3.38.1”

References

[ 1 ] CVE-2022-38725
https://nvd.nist.gov/vuln/detail/CVE-2022-38725

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202305-09

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License

Copyright 2023 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5