RHSA-2012:0137: Moderate: texlive security update

TeX Live is an implementation of TeX. TeX takes a text file and a set offormatting commands as input, and creates a typesetter-independent DeViceIndependent (DVI) file as output. The texlive packages provide a number ofutilities, including dvips.TeX Live embeds a copy of t1lib. The t1lib library allows you to rasterizebitmaps from PostScript Type 1 fonts. The following issues affect t1libcode:Two heap-based buffer overflow flaws were found in the way t1lib processedAdobe Font Metrics (AFM) files. If a specially-crafted font file was openedby a TeX Live utility, it could cause the utility to crash or, potentially,execute arbitrary code with the privileges of the user running the utility.(CVE-2010-2642, CVE-2011-0433)An invalid pointer dereference flaw was found in t1lib. A specially-craftedfont file could, when opened, cause a TeX Live utility to crash or,potentially, execute arbitrary code with the privileges of the user runningthe utility. (CVE-2011-0764)A use-after-free flaw was found in t1lib. A specially-crafted font filecould, when opened, cause a TeX Live utility to crash or, potentially,execute arbitrary code with the privileges of the user running the utility.(CVE-2011-1553)An off-by-one flaw was found in t1lib. A specially-crafted font file could,when opened, cause a TeX Live utility to crash or, potentially, executearbitrary code with the privileges of the user running the utility.(CVE-2011-1554)An out-of-bounds memory read flaw was found in t1lib. A specially-craftedfont file could, when opened, cause a TeX Live utility to crash.(CVE-2011-1552)Red Hat would like to thank the Evince development team for reportingCVE-2010-2642. Upstream acknowledges Jon Larimer of IBM X-Force as theoriginal reporter of CVE-2010-2642.All users of texlive are advised to upgrade to these updated packages,which contain backported patches to correct these issues.