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Gentoo GLSA-201702-04: GnuTLS Vulnerabilities Lead to Remote Code Execution

gentoo
Calendar Grey February 11, 2017
Dist Gentoo Esm H88
Several security flaws identified in GnuTLS might enable unauthorized code execution. Gentoo users are advised to update their systems.
Multiple vulnerabilities have been found in GnuTLS, the worst of which may allow execution of arbitrary code.

Summary

Multiple heap and stack overflows and double free vulnerabilities have been discovered in GnuTLS by the OSS-Fuzz project. Please review the CVE identifiers referenced below for details.

Topics%20covered

Topics Covered

security advisory gentoo heap overflow arbitrary code remote code gnutls stack overflow

Resolution

All GnuTLS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.3.26"

References

[ 1 ] CVE-2017-5334 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5334 [ 2 ] CVE-2017-5335 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5335 [ 3 ] CVE-2017-5336 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5336 [ 4 ] CVE-2017-5337 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5337

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201702-04
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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: GnuTLS: Multiple vulnerabilities
Date: February 10, 2017
Bugs: #605238
ID: 201702-04

Topics%20covered

Topics Covered

security advisory gentoo heap overflow arbitrary code remote code gnutls stack overflow

Synopsis

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

Background

GnuTLS is an Open Source implementation of the TLS and SSL protocols.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/gnutls < 3.3.26 >= 3.3.26

Impact

===== A remote attacker could entice a user or automated system to process a specially crafted certificate using an application linked against GnuTLS. This could possibly result in the execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

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