Joined: 12 May 2004
|Posted: Fri Nov 17, 2006 12:26 pm Post subject: [ GLSA 200611-09 ] libpng: Denial of Service
|Gentoo Linux Security Advisory
Title: libpng: Denial of Service (GLSA 200611-09)
Date: November 17, 2006
A vulnerability in libpng may allow a remote attacker to crash applications that handle untrusted images.
libpng is a free ANSI C library used to process and manipulate PNG images.
Vulnerable: < 1.2.13
Unaffected: >= 1.2.13
Architectures: All supported architectures
Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that a vulnerability exists in the sPLT chunk handling code of libpng, a large sPLT chunk may cause an application to attempt to read out of bounds.
A remote attacker could craft an image that when processed or viewed by an application using libpng causes the application to terminate abnormally.
There is no known workaround at this time.
All libpng users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.13"