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Gentoo: GLSA-202203-15 Critical: Libarchive Security Flaw Detected

gentoo
Calendar Grey March 29, 2012
Dist Gentoo Esm H88
Various vulnerabilities in libzip can result in the execution of unauthorized code. Apply updates to reduce potential threats. Threat Level: Moderate.
Multiple vulnerabilities have been found in libzip, the worst of which might allow execution of arbitrary code.

Summary

Two vulnerabilities have been found in the "_zip_readcdir()" function in zip_open.c of libzip: * An incorrect loop construct, which could cause a heap-based buffer overflow (CVE-2012-1162). * An integer overflow, which may not restrict operations within the memory buffer (CVE-2012-1163).

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow software update arbitrary code execution normal severity libzip

Resolution

All libzip users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libzip-0.10.1"

References

[ 1 ] CVE-2012-1162 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1162 [ 2 ] CVE-2012-1163 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1163

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201203-23
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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: Normal
Title: libzip: Multiple vulnerabilities
Date: March 29, 2012
Bugs: #409117
ID: 201203-23

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow software update arbitrary code execution normal severity libzip

Synopsis

Multiple vulnerabilities have been found in libzip, the worst of which might allow execution of arbitrary code.

Background

libzip is a library for manipulating zip archives.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libzip < 0.10.1 >= 0.10.1

Impact

===== A remote attacker could entice a user to open a specially crafted ZIP file, possibly resulting in execution of arbitrary code with the privileges of the process, a Denial of Service condition, or information leaks.

Workaround

There is no known workaround at this time.

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