Oracle Linux 5 : tetex (ELSA-2012-1201)

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Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2012:1201 :

Updated tetex packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

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.

See also :

https://oss.oracle.com/pipermail/el-errata/2012-August/002990.html

Solution :

Update the affected tetex packages.

Risk factor :

High / CVSS Base Score : 7.6
(CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.6
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 68602 ()

Bugtraq ID: 43594
43841
43845
45678
46941
47168
47169

CVE ID: CVE-2010-2642
CVE-2010-3702
CVE-2010-3704
CVE-2011-0433
CVE-2011-0764
CVE-2011-1552
CVE-2011-1553
CVE-2011-1554