SUSE-SU-2015:0953-1: moderate: Security update for perl-YAML-LibYAML

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for perl-YAML-LibYAML
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Announcement ID:    SUSE-SU-2015:0953-1
Rating:             moderate
References:         #860617 #868944 #907809 #911782 
Cross-References:   CVE-2013-6393 CVE-2014-2525 CVE-2014-9130
                   
Affected Products:
                    SUSE Linux Enterprise Server 12
______________________________________________________________________________

   An update that solves three vulnerabilities and has one
   errata is now available.

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).


Patch Instructions:

   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

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


Package List:

   - SUSE Linux Enterprise Server 12 (ppc64le s390x):

      perl-YAML-LibYAML-0.38-10.1
      perl-YAML-LibYAML-debuginfo-0.38-10.1
      perl-YAML-LibYAML-debugsource-0.38-10.1


References:

   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
   https://bugzilla.suse.com/860617
   https://bugzilla.suse.com/868944
   https://bugzilla.suse.com/907809
   https://bugzilla.suse.com/911782