UBUNTU-CVE-2015-6838

Dashboard / Vulnerabilities / UBUNTU-CVE-2015-6838

UBUNTU-CVE-2015-6838

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2015-6838, http://www.openwall.com/lists/oss-security/2015/09/07/5, https://ubuntu.com/security/notices/USN-2758-1, https://www.cve.org/CVERecord?id=CVE-2015-6838