libpng: Information disclosure

libpng: Information disclosure A vulnerability has been discovered in libpng that allows for information disclosure. libpng June 27, 2009 June 27, 2009: 01 272970 remote 1.2.37 1.2.37

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 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"

CVE-2009-2042 keytoaster keytoaster keytoaster