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Gentoo: GLSA-202212-07 High: libksba Remote Execution Threat

gentoo
Calendar Grey December 28, 2022
Dist Gentoo Esm H88
The Debian security notice DSA 5061-1 highlights a critical vulnerability that permits remote code execution stemming from a buffer overflow in the zlib library.
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.

Topics%20covered

Topics Covered

security advisory high severity buffer overflow remote execution integer overflow Gentoo Linux libksba

Resolution

All libksba users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libksba-1.6.3"

References

[ 1 ] CVE-2022-3515 https://nvd.nist.gov/vuln/detail/CVE-2022-3515 [ 2 ] CVE-2022-47629 https://nvd.nist.gov/vuln/detail/CVE-2022-47629

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202212-07
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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.

Severity: High
Title: libksba: Remote Code Execution
Date: December 28, 2022
Bugs: #877453
ID: 202212-07

Topics%20covered

Topics Covered

security advisory high severity buffer overflow remote execution integer overflow Gentoo Linux libksba

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.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libksba < 1.6.3 >= 1.6.3

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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