libpng: Information disclosure
Gentoo Linux Security Advisory
||GLSA 200906-01 / libpng
||June 27, 2009
||June 27, 2009: 01
All supported architectures
A vulnerability has been discovered in libpng that allows for information
libpng is the official PNG reference library used to read, write and
manipulate PNG images.
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
A remote attacker might entice a user to open a specially crafted PNG
file, possibly resulting in the disclosure of sensitive memory
There is no known workaround at this time.
All libpng users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.37"