PublicDateAtUSN: 2015-09-09
Candidate: CVE-2015-6838
PublicDate: 2016-05-16 10:59:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6838
 http://www.openwall.com/lists/oss-security/2015/09/07/5
 https://ubuntu.com/security/notices/USN-2758-1
Description:
 The xsl_ext_function_php function in ext/xsl/xsltprocessor.c in PHP before
 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13, when libxml2 before
 2.9.2 is used, does not consider the possibility of a NULL valuePop return
 value before proceeding with a free operation after the principal argument
 loop, which allows remote attackers to cause a denial of service (NULL
 pointer dereference and application crash) via a crafted XML document, a
 different vulnerability than CVE-2015-6837.
Ubuntu-Description:
Notes:
 sbeattie> DoS only?
 mdeslaur> same commit as CVE-2015-6837
Bugs:
 https://bugs.php.net/bug.php?id=69782
Priority: low
Discovered-by:
Assigned-to: mdeslaur
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H [7.5 HIGH]

Patches_php5:
 upstream: http://git.php.net/?p=php-src.git;a=commit;h=1744be2d17befc69bf00033993f4081852a747d6
upstream_php5: needs-triage
precise_php5: released (5.3.10-1ubuntu3.20)
trusty_php5: released (5.5.9+dfsg-1ubuntu4.13)
trusty/esm_php5: released (5.5.9+dfsg-1ubuntu4.13)
vivid_php5: released (5.6.4+dfsg-4ubuntu6.3)
devel_php5: released (5.6.11+dfsg-1ubuntu3)