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Gentoo GLSA-202210-42 Normal: zlib Remote Code Execution Advisory

gentoo
Calendar Grey October 31, 2022
Dist Gentoo Esm H88
Gentoo Linux Security Advisory GLSA 202210-43 addresses critical vulnerabilities in OpenSSL that could permit unauthorized access and compromise system integrity.
A buffer overflow in zlib might allow an attacker to cause remote code execution.

Summary

Multiple vulnerabilities have been discovered in zlib. Please review the CVE identifiers referenced below for details.

Topics%20covered

Topics Covered

security advisory Gentoo buffer overflow remote code execution package update zlib normal severity

Resolution

All zlib users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.12-r3"

References

[ 1 ] CVE-2018-25032 https://nvd.nist.gov/vuln/detail/CVE-2018-25032 [ 2 ] CVE-2022-37434 https://nvd.nist.gov/vuln/detail/CVE-2022-37434

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202210-42
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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: Normal
Title: zlib: Multiple vulnerabilities
Date: October 31, 2022
Bugs: #863851, #835958
ID: 202210-42

Topics%20covered

Topics Covered

security advisory Gentoo buffer overflow remote code execution package update zlib normal severity

Synopsis

A buffer overflow in zlib might allow an attacker to cause remote code execution.

Background

zlib is a widely used free and patent unencumbered data compression library.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-libs/zlib < 1.2.12-r3 >= 1.2.12-r3

Impact

===== Maliciously crafted input handled by zlib may result in remote code execution.

Workaround

There is no known workaround at this time.

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