Home / mailings [gentoo-announce] [ GLSA 202210-23 ] libksba: Remote Code Execution
Posted on 31 October 2022
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Gentoo Linux Security Advisory GLSA 202210-23
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https://security.gentoo.org/
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Severity: High
Title: libksba: Remote Code Execution
Date: October 31, 2022
Bugs: #877453
ID: 202210-23
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Synopsis
========
An integer overflow vulnerability has been found in libksba which could
result in remote code execution.
Background
==========
Libksba is a X.509 and CMS (PKCS#7) library.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libksba < 1.6.2 >= 1.6.2
Description
===========
An integer overflow in parsing ASN.1 objects could lead to a buffer
overflow.
Impact
======
Crafted ASN.1 objects could trigger an integer overflow and buffer
overflow to result in remote code execution.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All libksba users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libksba-1.6.2"
References
==========
[ 1 ] CVE-2022-3515
https://nvd.nist.gov/vuln/detail/CVE-2022-3515
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202210-23
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
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2022 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
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