Updated libtiff packages that fix various buffer and integer overflows are now available.
The libtiff package contains a library of functions for manipulating TIFF (Tagged Image File Format) image format files. TIFF is a widely used file format for bitmapped images. During a source code audit, Chris Evans discovered a number of integer overflow bugs that affect libtiff. An attacker who has the ability to trick a user into opening a malicious TIFF file could cause the application linked to libtiff to crash or possibly execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2004-0886 and CAN-2004-0804 to these issues. Additionally, a number of buffer overflow bugs that affect libtiff have been found. An attacker who has the ability to trick a user into opening a malicious TIFF file could cause the application linked to libtiff to crash or possibly execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0803 to this issue. All users are advised to upgrade to these errata packages, which contain fixes for these issues.
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