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Red Hat Linux 5: RHSA-2012:1201-01 Moderate: tetex Buffer Overflow

red hat
Calendar Grey August 23, 2012
Scroller Redhat
The latest advisory from Red Hat addresses a security update for texlive that resolves various issues, categorized as moderate in severity. This is crucial information for all users.
Updated tetex packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Summary

teTeX is an implementation of TeX. TeX takes a text file and a set of formatting commands as input, and creates a typesetter-independent DeVice Independent (DVI) file as output.
teTeX embeds a copy of t1lib to rasterize bitmaps from PostScript Type 1 fonts. The following issues affect t1lib code:
Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially-crafted font file was opened by teTeX, it could cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX. (CVE-2010-2642, CVE-2011-0433)
An invalid pointer dereference flaw was found in t1lib. A specially-crafted font file could, when opened, cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX. (CVE-2011-0764)
A use-after-free flaw was found in t1lib. A specially-crafted font file could, when opened, cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX. (CVE-2011-1553)
An off-by-one flaw was found in t1lib. A specially-crafted font file could, when opened, cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX. (CVE-2011-1554)
An out-of-bounds memory read flaw was found in t1lib. A specially-crafted font file could, when opened, cause teTeX to crash. (CVE-2011-1552)
teTeX embeds a copy of Xpdf, an open source Portable Document Format (PDF) file viewer, to allow adding images in PDF format to the generated PDF documents. The following issues affect Xpdf code:
An uninitialized pointer use flaw was discovered in Xpdf. If pdflatex was used to process a TeX document referencing a specially-crafted PDF file, it could cause pdflatex to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2010-3702)
An array index error was found in the way Xpdf parsed PostScript Type 1 fonts embedded in PDF documents. If pdflatex was used to process a TeX document referencing a specially-crafted PDF file, it could cause pdflatex to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2010-3704)
Red Hat would like to thank the Evince development team for reporting CVE-2010-2642. Upstream acknowledges Jon Larimer of IBM X-Force as the original reporter of CVE-2010-2642.
All users of tetex are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Topics%20covered

Topics Covered

security advisory buffer overflow red hat patch update teTeX

References

https://access.redhat.com/security/cve/CVE-2010-2642 https://access.redhat.com/security/cve/CVE-2010-3702 https://access.redhat.com/security/cve/CVE-2010-3704 https://access.redhat.com/security/cve/CVE-2011-0433 https://access.redhat.com/security/cve/CVE-2011-0764 https://access.redhat.com/security/cve/CVE-2011-1552 https://access.redhat.com/security/cve/CVE-2011-1553 https://access.redhat.com/security/cve/CVE-2011-1554 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: tetex-3.0-33.15.el5_8.1.i386.rpm tetex-afm-3.0-33.15.el5_8.1.i386.rpm tetex-debuginfo-3.0-33.15.el5_8.1.i386.rpm tetex-doc-3.0-33.15.el5_8.1.i386.rpm tetex-dvips-3.0-33.15.el5_8.1.i386.rpm tetex-fonts-3.0-33.15.el5_8.1.i386.rpm tetex-latex-3.0-33.15.el5_8.1.i386.rpm tetex-xdvi-3.0-33.15.el5_8.1.i386.rpm
x86_64: tetex-3.0-33.15.el5_8.1.x86_64.rpm tetex-afm-3.0-33.15.el5_8.1.x86_64.rpm tetex-debuginfo-3.0-33.15.el5_8.1.x86_64.rpm tetex-doc-3.0-33.15.el5_8.1.x86_64.rpm tetex-dvips-3.0-33.15.el5_8.1.x86_64.rpm tetex-fonts-3.0-33.15.el5_8.1.x86_64.rpm tetex-latex-3.0-33.15.el5_8.1.x86_64.rpm tetex-xdvi-3.0-33.15.el5_8.1.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: tetex-3.0-33.15.el5_8.1.i386.rpm tetex-afm-3.0-33.15.el5_8.1.i386.rpm tetex-debuginfo-3.0-33.15.el5_8.1.i386.rpm tetex-doc-3.0-33.15.el5_8.1.i386.rpm tetex-dvips-3.0-33.15.el5_8.1.i386.rpm tetex-fonts-3.0-33.15.el5_8.1.i386.rpm tetex-latex-3.0-33.15.el5_8.1.i386.rpm tetex-xdvi-3.0-33.15.el5_8.1.i386.rpm
ia64: tetex-3.0-33.15.el5_8.1.ia64.rpm tetex-afm-3.0-33.15.el5_8.1.ia64.rpm tetex-debuginfo-3.0-33.15.el5_8.1.ia64.rpm tetex-doc-3.0-33.15.el5_8.1.ia64.rpm tetex-dvips-3.0-33.15.el5_8.1.ia64.rpm tetex-fonts-3.0-33.15.el5_8.1.ia64.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:1201-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1201.html
Issue date: 2012-08-23

Topic

Updated tetex packages that fix multiple security issues are now availablefor Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory buffer overflow red hat patch update teTeX

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

595245 - CVE-2010-3702 xpdf: uninitialized Gfx::parser pointer dereference

638960 - CVE-2010-3704 xpdf: array indexing error in FoFiType1::parse()

666318 - CVE-2010-2642 evince, t1lib: Heap based buffer overflow in DVI file AFM font parser

679732 - CVE-2011-0433 evince, t1lib: Heap-based buffer overflow DVI file AFM font parser

692853 - CVE-2011-1552 t1lib: invalid read crash via crafted Type 1 font

692854 - CVE-2011-1553 t1lib: Use-after-free via crafted Type 1 font

692856 - CVE-2011-1554 t1lib: Off-by-one via crafted Type 1 font

692909 - CVE-2011-0764 t1lib: Invalid pointer dereference via crafted Type 1 font

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