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Gentoo: GLSA-201309-01 Normal Severity: cyrus-sasl DoS Incident

gentoo
Calendar Grey September 1, 2013
Scroller Gentoo
A normal severity vulnerability has been found in Cyrus-SASL that could lead to a Denial of Service due to a NULL pointer dereference, urging users to upgrade
A NULL pointer dereference in Cyrus-SASL may allow remote attackers to cause a Denial of Service condition.

Summary

In the GNU C Library (glibc) from version 2.17 onwards, the crypt() function call can return NULL when the salt violates specifications or the system is in FIPS-140 mode and a DES or MD5 hashed password is passed. When Cyrus-SASL's authentication mechanisms call crypt(), a NULL may be returned.

Topics%20covered

Topics Covered

security advisory denial of service gentoo cyrus-sasl normal severity remote attacker

Resolution

All Cyrus-SASL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.26-r3"

References

[ 1 ] CVE-2013-4122 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4122

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201309-01
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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: Cyrus-SASL: Denial of Service
Date: September 01, 2013
Bugs: #476764
ID: 201309-01

Topics%20covered

Topics Covered

security advisory denial of service gentoo cyrus-sasl normal severity remote attacker

Synopsis

A NULL pointer dereference in Cyrus-SASL may allow remote attackers to cause a Denial of Service condition.

Background

Cyrus-SASL is an implementation of the Simple Authentication and Security Layer.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/cyrus-sasl < 2.1.26-r3 >= 2.1.26-r3

Impact

===== A remote attacker could trigger this vulnerability to cause a Denial of Service condition.

Workaround

There is no known workaround at this time.