Joined: 12 May 2004
|Posted: Sun Jun 28, 2009 12:26 am Post subject: [ GLSA 200906-01 ] libpng: Information disclosure
|Gentoo Linux Security Advisory
Title: libpng: Information disclosure (GLSA 200906-01)
Date: June 27, 2009
A vulnerability has been discovered in libpng that allows for information disclosure.
libpng is the official PNG reference library used to read, write and manipulate PNG images.
Vulnerable: < 1.2.37
Unaffected: >= 1.2.37
Architectures: All supported architectures
Jeff Phillips discovered that libpng does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to include uninitialized bits in certain rows of a PNG file.
A remote attacker might entice a user to open a specially crafted PNG file, possibly resulting in the disclosure of sensitive memory portions.
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-1.2.37"