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Alerts This Week
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Gentoo: GLSA-202401-18 High: zlib Buffer Overflow Threat Detected

gentoo
Calendar Grey January 15, 2024
Dist Gentoo Esm H88
Critical alert for Gentoo users regarding a severe zlib vulnerability. Update at once to protect your systems.
A vulnerability has been found in zlib that can lead to a heap-based buffer overflow.

Summary

A vulnerability has been discovered in zlib. Please review the CVE identifier referenced below for details.

Topics%20covered

Topics Covered

security advisory high severity gentoo buffer overflow upgrade recommendation zlib

Resolution

All zlib users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.13-r2"

References

[ 1 ] CVE-2023-45853 https://nvd.nist.gov/vuln/detail/CVE-2023-45853

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202401-18
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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: zlib: Buffer Overflow
Date: January 15, 2024
Bugs: #916484
ID: 202401-18

Topics%20covered

Topics Covered

security advisory high severity gentoo buffer overflow upgrade recommendation zlib

Synopsis

A vulnerability has been found in zlib that can lead to a heap-based buffer overflow.

Background

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

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Affected Packages

Package Vulnerable Unaffected ------------- ------------ ------------ sys-libs/zlib < 1.2.13-r2 >= 1.2.13-r2

Impact

MiniZip in zlib through 1.3 has an integer overflow and resultant heap- based buffer overflow in ZipOpenNewFileInZip4_64 via a long filename, comment, or extra field.

Workaround

There is no known workaround at this time.

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