1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200603-18 / pngcrush |
| Release Date | March 21, 2006 |
| Latest Revision | March 21, 2006: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| media-gfx/pngcrush | < 1.6.2 | >= 1.6.2 | All supported architectures |
Related bugreports: #123286
Pngcrush is vulnerable to a buffer overflow which could potentially lead to the execution of arbitrary code.
Pngcrush is an optimizer for PNG files.
Carsten Lohrke of Gentoo Linux reported that Pngcrush contains a vulnerable version of zlib (GLSA 200507-19).
By creating a specially crafted data stream, attackers can overwrite data structures for applications that use Pngcrush, resulting in a Denial of Service and potentially arbitrary code execution.
There is no known workaround at this time.
All Pngcrush users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/pngcrush-1.6.2" |