CVE-2011-2896 Memory corruption in n/a

What is CVE-2011-2896?

CVE-2011-2896 is a medium-severity memory corruption vulnerability in Apple Cups, published on 19 Aug 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-787

Which versions are affected by CVE-2011-2896?

It affects 3 products.

Products include Apple Cups, Gimp Gimp, Swi-Prolog Swi-Prolog.

How do I fix CVE-2011-2896?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2011-2896 being exploited?

There is no known exploitation of CVE-2011-2896 in the wild and no public exploit code.

Other vulnerabilities in Apple Cups

• CVE-2008-5184 Cross-site request forgery in n/a Critical 10.0
• CVE-2008-3641 Memory corruption in n/a Critical 10.0
• CVE-2008-0053 Memory corruption in n/a Critical 10.0
• CVE-2012-6094 Missing authorization in cups Critical 9.8
• CVE-2010-2941 Use after free in n/a Critical 9.8

All Apple Cups vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2011-2896, GHSA-46mw-xwc9-f8hc, RHSA-2011:1635, RHSA-2012:0302, UBUNTU-CVE-2011-2896.