CVE-2011-2896: apple cups Out-of-bounds Write

Vulnerability summary

CVE-2011-2896 is a medium (CVSS 5.1) Out-of-bounds Write vulnerability in apple cups. EPSS estimates a 11.99% chance of exploitation in the next 30 days, higher than 96% of scored vulnerabilities.

Timeline

1. 19-08-2011
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

The LZW decompressor in the LWZReadByte function in giftoppm.c in the David Koblas GIF decoder in PBMPLUS, as used in the gif_read_lzw function in filter/image-gif.c in CUPS before 1.4.7, the LZWReadByte function in plug-ins/common/file-gif-load.c in GIMP 2.6.11 and earlier, the LZWReadByte function in img/gifread.c in XPCE in SWI-Prolog 5.10.4 and earlier, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows remote attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2895.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.