X.Org, XFree86: libXpm vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200411-28 / X.Org, XFree86
Release Date	November 19, 2004
Latest Revision	November 19, 2004: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
x11-base/xorg-x11	< 6.8.0-r3	>= 6.8.0-r3, revision >= 6.7.0-r3	All supported architectures
x11-base/xfree	< 4.3.0-r8	>= 4.3.0-r8	All supported architectures

Related bugreports: #68544

Synopsis

libXpm contains several vulnerabilities that could lead to a Denial of Service and arbitrary code execution.

2. Impact Information

Background

libXpm is a pixmap manipulation library for the X Window System, included in both X.Org and XFree86.

Description

Several issues were discovered in libXpm, including integer overflows, out-of-bounds memory accesses, insecure path traversal and an endless loop.

Impact

An attacker could craft a malicious pixmap file and entice a user to use it with an application linked against libXpm. This could lead to Denial of Service or arbitrary code execution.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All X.Org users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.7.0-r3"

All XFree86 users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-base/xfree-x11-4.3.0-r8"

4. References

CAN-2004-0914

Page updated November 19, 2004

Summary: This is a Gentoo Linux Security Advisory

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