libpng vulnerabilities

Releases

• Ubuntu 8.10
• Ubuntu 8.04
• Ubuntu 7.10
• Ubuntu 6.06

Packages

• libpng -

Details

It was discovered that libpng did not properly perform bounds checking in
certain operations. An attacker could send a specially crafted PNG image and
cause a denial of service in applications linked against libpng. This issue
only affected Ubuntu 8.04 LTS. (CVE-2007-5268, CVE-2007-5269)

Tavis Ormandy discovered that libpng did not properly initialize memory. If a
user or automated system were tricked into opening a crafted PNG image, an
attacker could cause a denial of service via application crash, or possibly
execute arbitrary code with the privileges of the user invoking the program.
This issue did not affect Ubuntu 8.10. (CVE-2008-1382)

Harald van Dijk discovered an off-by-one error in libpng. An attacker could
could cause an application crash in programs using pngtest. (CVE-2008-3964)

It was discovered that libpng did not properly NULL terminate a keyword
string. An attacker could exploit this to set arbitrary memory locations to
zero. (CVE-2008-5907)

Glenn Randers-Pehrson discovered that libpng did not properly initialize
pointers. If a user or automated system were tricked into opening a crafted PNG
file, an attacker could cause a denial of service or possibly execute arbitrary
code with the privileges of the user invoking the program. (CVE-2009-0040)