Gentoo: GLSA-202210-23 High: libksba Remote Execution Risk
gentoo
October 30, 2022
An integer overflow vulnerability has been found in libksba which could result in remote code execution.
Summary
An integer overflow in parsing ASN.1 objects could lead to a buffer overflow.
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
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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.
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Severity: High
Title: libksba: Remote Code Execution
Date: October 31, 2022
Bugs: #877453
ID: 202210-23
Background
Libksba is a X.509 and CMS (PKCS#7) library.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libksba < 1.6.2 >= 1.6.2
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.
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