Gentoo Linux Security Advisory 201207-10 - Multiple vulnerabilities have been found in CUPS, some of which may allow execution of arbitrary code or local privilege escalation. Versions less than 1.4.8-r1 are affected.
ac1a9fddc193fe58d21d0ca7c54126b91d2ff39c64167361020f526fdbf282f1Debian Linux Security Advisory 2354-1 - Petr Sklenar and Tomas Hoger discovered that missing input sanitising in the GIF decoder inside the Cups printing system could lead to denial of service or potentially arbitrary code execution through crafted GIF files.
7f113952be28c42d62a36b7f9cc4415e144cd6c8fe1716bd4b204297ff211d6aMandriva Linux Security Advisory 2011-147 - The gif_read_lzw function in filter/image-gif.c in CUPS 1.4.8 and earlier does not properly handle the first code word in an LZW stream, which allows remote attackers to trigger a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted stream, a different vulnerability than CVE-2011-2896. The updated packages have been patched to correct this issue.
af8b903986d241f2e750a29c0292b80e3f1dfc417d0557ec4e94c38e584385f0Mandriva Linux Security Advisory 2011-146 - The cupsDoAuthentication function in auth.c in the client in CUPS before 1.4.4, when HAVE_GSSAPI is omitted, does not properly handle a demand for authorization, which allows remote CUPS servers to cause a denial of service via HTTP_UNAUTHORIZED responses. 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 and CVE-2011-2895. The gif_read_lzw function in filter/image-gif.c in CUPS 1.4.8 and earlier does not properly handle the first code word in an LZW stream, which allows remote attackers to trigger a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted stream, a different vulnerability than CVE-2011-2896.
48a1c0fec4da5f4548c480faaebd5504e2e71bfb04dc4f7b79dc01b7f4e22a7dUbuntu Security Notice 1207-1 - Tomas Hoger discovered that the CUPS image library incorrectly handled LZW streams. A remote attacker could use this flaw to cause a denial of service or possibly execute arbitrary code.
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