1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200903-12 / optipng |
| Release Date | March 09, 2009 |
| Latest Revision | March 09, 2009: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| media-gfx/optipng | < 0.6.2-r1 | >= 0.6.2-r1 | All supported architectures |
Related bugreports: #260265
A vulnerability in OptiPNG might result in user-assisted execution of arbitrary code.
OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information.
Roy Tam reported a use-after-free vulnerability in the GIFReadNextExtension() function in lib/pngxtern/gif/gifread.c leading to a memory corruption when reading a GIF image.
A remote attacker could entice a user to process a specially crafted GIF image, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service.
There is no known workaround at this time.
All OptiPNG users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/optipng-0.6.2-r1" |