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[ GLSA 200509-07 ] X.Org: Heap overflow in pixmap allocation
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GLSA
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Joined: 12 May 2004
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PostPosted: Mon Sep 12, 2005 3:55 pm    Post subject: [ GLSA 200509-07 ] X.Org: Heap overflow in pixmap allocation Reply with quote

Gentoo Linux Security Advisory

Title: X.Org: Heap overflow in pixmap allocation (GLSA 200509-07)
Severity: high
Exploitable: local
Date: September 12, 2005
Bug(s): #105688
ID: 200509-07

Synopsis

An integer overflow in pixmap memory allocation potentially allows any X.Org user to execute arbitrary code with elevated privileges.

Background

X.Org is X.Org Foundation's Public Implementation of the X Window System.

Affected Packages

Package: x11-base/xorg-x11
Vulnerable: < 6.8.2-r3
Unaffected: >= 6.8.2-r3
Architectures: All supported architectures


Description

X.Org is missing an integer overflow check during pixmap memory allocation.

Impact

An X.Org user could exploit this issue to make the X server execute arbitrary code with elevated privileges.

Workaround

There is no known workaround at this time.

Resolution

All X.org users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.8.2-r3"


References

CAN-2005-2495


Last edited by GLSA on Sun May 07, 2006 4:58 pm; edited 1 time in total
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