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Gentoo: GLSA-201309-03 normal: xlockmore denial of service

gentoo
Calendar Grey September 2, 2013
Dist Gentoo Esm H88
The Gentoo security advisory GLSA 201401-02 highlights a critical vulnerability in Gnumeric that could lead to arbitrary code execution.
A buffer overflow in Xlockmore might allow remote attackers to cause a Denial of Service.

Summary

A Denial of Service flaw was found in the way Xlockmore performed the passing of arguments to the underlying localtime() call, when the 'dlock' mode was used.

Topics%20covered

Topics Covered

security advisory denial of service gentoo buffer overflow xlockmore

Resolution

All Xlockmore users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-misc/xlockmore-5.43"

References

[ 1 ] CVE-2012-4524 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4524 [ 2 ] CVE-2013-4143 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4143

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201309-03
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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: Xlockmore: Denial of Service
Date: September 02, 2013
Bugs: #255229, #440776, #477328
ID: 201309-03

Topics%20covered

Topics Covered

security advisory denial of service gentoo buffer overflow xlockmore

Synopsis

A buffer overflow in Xlockmore might allow remote attackers to cause a Denial of Service.

Background

Xlockmore is just another screensaver application for X.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-misc/xlockmore < 5.43 >= 5.43

Impact

===== A local attacker could possibly cause a Denial of Service condition and potentially obtain unauthorized access to the graphical session, previously locked by another user.

Workaround

There is no known workaround at this time.

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