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[ GLSA 200408-03 ] libpng: Numerous vulnerabilities
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GLSA
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Joined: 13 Jun 2003
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PostPosted: Thu Aug 05, 2004 12:50 pm    Post subject: [ GLSA 200408-03 ] libpng: Numerous vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: libpng: Numerous vulnerabilities (GLSA 200408-03)
Severity: normal
Exploitable: remote
Date: August 05, 2004
Bug(s): #59424
ID: 200408-03

Synopsis

libpng contains numerous vulnerabilities potentially allowing an attacker to perform a Denial of Service attack or even execute arbitrary code.

Background

libpng is a standard library used to process PNG (Portable Network Graphics) images. It is used by several other programs, including web browsers and potentially server processes.

Affected Packages

Package: media-libs/libpng
Vulnerable: <= 1.2.5-r7
Unaffected: >= 1.2.5-r8
Architectures: All supported architectures


Description

libpng contains numerous vulnerabilities including null pointer dereference errors and boundary errors in various functions.

Impact

An attacker could exploit these vulnerabilities to cause programs linked against the library to crash or execute arbitrary code with the permissions of the user running the vulnerable program, which could be the root user.

Workaround

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version.

Resolution

All libpng users should upgrade to the latest stable version:
Code:
# emerge sync
# emerge -pv ">=media-libs/libpng-1.2.5-r8"
# emerge ">=media-libs/libpng-1.2.5-r8"
You should also run revdep-rebuild to rebuild any packages that depend on older versions of libpng :
Code:
# revdep-rebuild


References

CAN-2004-0597
CAN-2004-0598
CAN-2004-0599


Last edited by GLSA on Sun May 07, 2006 4:52 pm; edited 1 time in total
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