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CVE-2010-0205

Published: 3 March 2010

The png_decompress_chunk function in pngrutil.c in libpng 1.0.x before 1.0.53, 1.2.x before 1.2.43, and 1.4.x before 1.4.1 does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service (memory and CPU consumption, and application hang) via a crafted PNG file, as demonstrated by use of the deflate compression method on data composed of many occurrences of the same character, related to a "decompression bomb" attack.

Priority

Medium

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
dapper Ignored
(end of life)
hardy Ignored
(end of life)
intrepid Does not exist

jaunty Does not exist

karmic Does not exist

upstream Needs triage

libpng
Launchpad, Ubuntu, Debian
dapper
Released (1.2.8rel-5ubuntu0.5)
hardy
Released (1.2.15~beta5-3ubuntu0.2)
intrepid
Released (1.2.27-1ubuntu0.2)
jaunty
Released (1.2.27-2ubuntu2.1)
karmic
Released (1.2.37-1ubuntu0.1)
upstream
Released (1.4.1)
Patches:
upstream: http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=a2cde53c878054847a57c2c793febcaf78f823e0#patch3