openSUSE Security Update: Security update for libXfont
______________________________________________________________________________

Announcement ID: openSUSE-SU-2015:0614-1
Rating: important
References: #921978
Cross-References: CVE-2015-1802 CVE-2015-1803 CVE-2015-1804

Affected Products:
openSUSE 13.2
openSUSE 13.1
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An update that fixes three vulnerabilities is now available.

Description:

libXFont was updated to fix three vulnerabilities when parsing BDF files
(bnc#921978)

As libXfont is used by the X server to read font files, and an
unprivileged user with access to the X server can tell the X server to
read a given font file from a path of their choosing, these
vulnerabilities have the potential to allow unprivileged users to run code
with the privileges of the X server.

The following vulnerabilities were fixed:
* The BDF parser could allocate the a wrong buffer size, leading to out of
bound writes (CVE-2015-1802)
* The BDF parser could crash when trying to read an invalid pointer
(CVE-2015-1803)
* The BDF parser could read 32 bit metrics values into 16 bit integers,
causing an out-of-bound memory access though integer overflow
(CVE-2015-1804)

Patch Instructions:

To install this openSUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

– openSUSE 13.2:

zypper in -t patch openSUSE-2015-266=1

– openSUSE 13.1:

zypper in -t patch openSUSE-2015-266=1

To bring your system up-to-date, use “zypper patch”.

Package List:

– openSUSE 13.2 (i586 x86_64):

libXfont-debugsource-1.5.0-2.4.1
libXfont-devel-1.5.0-2.4.1
libXfont1-1.5.0-2.4.1
libXfont1-debuginfo-1.5.0-2.4.1

– openSUSE 13.2 (x86_64):

libXfont-devel-32bit-1.5.0-2.4.1
libXfont1-32bit-1.5.0-2.4.1
libXfont1-debuginfo-32bit-1.5.0-2.4.1

– openSUSE 13.1 (i586 x86_64):

libXfont-debugsource-1.4.6-2.12.1
libXfont-devel-1.4.6-2.12.1
libXfont1-1.4.6-2.12.1
libXfont1-debuginfo-1.4.6-2.12.1

– openSUSE 13.1 (x86_64):

libXfont-devel-32bit-1.4.6-2.12.1
libXfont1-32bit-1.4.6-2.12.1
libXfont1-debuginfo-32bit-1.4.6-2.12.1

References:

http://support.novell.com/security/cve/CVE-2015-1802.html
http://support.novell.com/security/cve/CVE-2015-1803.html
http://support.novell.com/security/cve/CVE-2015-1804.html
https://bugzilla.suse.com/921978

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