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[ GLSA 201309-03 ] Xlockmore: Denial of Service
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Joined: 12 May 2004
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PostPosted: Mon Sep 02, 2013 10:26 am    Post subject: [ GLSA 201309-03 ] Xlockmore: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: Xlockmore: Denial of Service (GLSA 201309-03)
Severity: normal
Exploitable: local
Date: September 02, 2013
Bug(s): #255229, #440776, #477328
ID: 201309-03

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.

Affected Packages

Package: x11-misc/xlockmore
Vulnerable: < 5.43
Unaffected: >= 5.43
Architectures: All supported architectures


Description

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.


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.

Resolution

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


References

CVE-2012-4524
CVE-2013-4143
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