PT-2015-3235 · Php+3 · Php+3

Published 2015-09-09 · Updated 2017-11-04 · CVE-2015-6837

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libxml2 and PHP versions prior to 5.4.45, 5.5.29, and 5.6.13

Description The issue is related to errors in pointer dereferencing in the xsl ext function php function. Exploitation of this issue may allow a remote attacker to cause a denial of service, resulting in a null pointer dereference and application crash, by using a specially crafted XML document.

Recommendations For PHP versions prior to 5.4.45, update to version 5.4.45 or later. For PHP versions 5.5.x prior to 5.5.29, update to version 5.5.29 or later. For PHP versions 5.6.x prior to 5.6.13, update to version 5.6.13 or later. As a temporary workaround, consider restricting the use of the xsl ext function php function until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2016-01357

CVE-2015-6837

DLA-341-1

DSA-3358-1

MGASA-2015-0365

OPENSUSE-SU-2015_1628-1

RHSA-2016:0457

SUSE-SU-2015:1633-1

SUSE-SU-2015:1701-1

SUSE-SU-2015:1818-1

SUSE-SU-2016:1638-1

USN-2758-1

Affected Products

Php

Suse

Ubuntu

Libxml2

References · 250

• 🔥 https://github.com/ockeghem/CVE-2015-6835-checker · Exploit
• 🔥 https://bugs.php.net/bug.php?id=69782 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5589 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6837 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6835 · Security Note
• https://ubuntu.com/security/CVE-2015-5589 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-6837 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2015-0365.html · Security Note
• http://debian.org/security/2015/dsa-3358 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6831 · Security Note
• https://ubuntu.com/security/CVE-2015-5590 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-6831 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6832 · Security Note
• https://bdu.fstec.ru/vul/2016-01360 · Security Note
• https://ubuntu.com/security/notices/USN-2758-1 · Vendor Advisory