Scientific Linux: Moderate t1lib Update for Heap and Memory Flaws

Date: Wed, 25 Jan 2012 15:20:23 -0600
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Sender: Security Errata for Scientific Linux
 
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Subject: Security ERRATA Moderate: t1lib on SL6.x i386/x86_64
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Synopsis: Moderate: t1lib security update
Issue Date: 2012-01-24
CVE Numbers: CVE-2010-2642
 CVE-2011-0433
 CVE-2011-1552
 CVE-2011-1553
 CVE-2011-1554
 CVE-2011-0764

The t1lib library allows you to rasterize bitmaps from PostScript Type 1
fonts.

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 an application linked against t1lib, it could cause the application to
crash or, potentially, execute arbitrary code with the privileges of the
user running the application. (CVE-2010-2642, CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially-crafted
font file could, when opened, cause an application linked against t1lib to
crash or, potentially, execute arbitrary code with the privileges of the
user running the application. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially-crafted font file
could, when opened, cause an application linked against t1lib to crash or,
potentially, execute arbitrary code with the privileges of the user
running the application. (CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially-crafted font file could,
when opened, cause an application linked against t1lib to crash or,
potentially, execute arbitrary code with the privileges of the user running
the application. (CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially-crafted
font file could, when opened, cause an application linked against t1lib to
crash. (CVE-2011-1552)

All users of t1lib are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. All applications linked
against t1lib must be restarted for this update to take effect.

SL6:
 i386
 t1lib-5.1.2-6.el6_2.1.i686.rpm
 t1lib-apps-5.1.2-6.el6_2.1.i686.rpm
 t1lib-debuginfo-5.1.2-6.el6_2.1.i686.rpm
 t1lib-devel-5.1.2-6.el6_2.1.i686.rpm
 t1lib-static-5.1.2-6.el6_2.1.i686.rpm
 x86_64
 t1lib-5.1.2-6.el6_2.1.i686.rpm
 t1lib-5.1.2-6.el6_2.1.x86_64.rpm
 t1lib-apps-5.1.2-6.el6_2.1.x86_64.rpm
 t1lib-debuginfo-5.1.2-6.el6_2.1.i686.rpm
 t1lib-debuginfo-5.1.2-6.el6_2.1.x86_64.rpm
 t1lib-devel-5.1.2-6.el6_2.1.i686.rpm
 t1lib-devel-5.1.2-6.el6_2.1.x86_64.rpm
 t1lib-static-5.1.2-6.el6_2.1.x86_64.rpm

- Scientific Linux Development Team