SUSE SLED12 / SLES12 Security Update : perl-YAML-LibYAML (SUSE-SU-2015:0953-2)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

perl-YAML-LibYAML was updated to fix three security issues.

These security issues were fixed :

- CVE-2013-6393: The yaml_parser_scan_tag_uri function in
scanner.c in LibYAML before 0.1.5 performed an incorrect
cast, which allowed remote attackers to cause a denial
of service (application crash) and possibly execute
arbitrary code via crafted tags in a YAML document,
which triggered a heap-based buffer overflow
(bnc#860617, bnc#911782).

- CVE-2014-9130: scanner.c in LibYAML 0.1.5 and 0.1.6, as
used in the YAML-LibYAML (aka YAML-XS) module for Perl,
allowed context-dependent attackers to cause a denial of
service (assertion failure and crash) via vectors
involving line-wrapping (bnc#907809, bnc#911782).

- CVE-2014-2525: Heap-based buffer overflow in the
yaml_parser_scan_uri_escapes function in LibYAML before
0.1.6 allowed context-dependent attackers to execute
arbitrary code via a long sequence of percent-encoded
characters in a URI in a YAML file (bnc#868944,
bnc#911782).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.suse.com/860617
https://bugzilla.suse.com/868944
https://bugzilla.suse.com/907809
https://bugzilla.suse.com/911782
https://www.suse.com/security/cve/CVE-2013-6393.html
https://www.suse.com/security/cve/CVE-2014-2525.html
https://www.suse.com/security/cve/CVE-2014-9130.html
http://www.nessus.org/u?931cf879

Solution :

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

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-215=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-215=1

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

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: SuSE Local Security Checks

Nessus Plugin ID: 83869 ()

Bugtraq ID: 65258
66478
71349

CVE ID: CVE-2013-6393
CVE-2014-2525
CVE-2014-9130

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