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Gentoo: GLSA-202210-23 High: libksba Remote Execution Risk

gentoo
Calendar Grey October 30, 2022
Dist Gentoo Esm H88
A buffer overflow vulnerability in libksba may lead to unauthorized code execution. It is recommended to update your software to reduce potential threats. Risk Level: Critical.
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 Gentoo high severity security fix remote execution integer overflow libksba

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.

Severity: High
Title: libksba: Remote Code Execution
Date: October 31, 2022
Bugs: #877453
ID: 202210-23

Topics%20covered

Topics Covered

security advisory Gentoo high severity security fix remote execution integer overflow 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 < 1.6.2 >= 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.