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F5 Networks: K17377 (CVE-2015-6837): PHP vulnerabilities CVE-2015-6834, CVE-2015-6835, CVE-2015-6836, CVE-2015-6837, and CVE-2015-6838

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F5 Networks: K17377 (CVE-2015-6837): PHP vulnerabilities CVE-2015-6834, CVE-2015-6835, CVE-2015-6836, CVE-2015-6837, and CVE-2015-6838

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
10/08/2015
Created
07/25/2018
Added
02/16/2017
Modified
05/07/2019

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 during initial error checking, 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-2015-6838.

Solution(s)

  • f5-big-ip-upgrade-latest

References

  • f5-big-ip-upgrade-latest

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