CVE-2015-6838

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

Timeline

Published: May 16, 2016
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2015

CVE-2015-68394.6The parse function in MSA vot.Ar 3.1 does not check whether a candidate receives more than one vote, which allows physically proximate attac CVE-2015-68435.0Reviewer in EMC SourceOne Email Supervisor before 7.2 does not properly limit attempts to authenticate, which makes it easier for remote att CVE-2015-68444.3Cross-site scripting (XSS) vulnerability in Reviewer in EMC SourceOne Email Supervisor before 7.2 allows remote attackers to inject arbitrar CVE-2015-68457.5EMC SourceOne Email Supervisor before 7.2 does not properly employ random values for session IDs, which makes it easier for remote attackers CVE-2015-68466.8EMC SourceOne Email Supervisor before 7.2 uses hardcoded encryption keys, which makes it easier for attackers to obtain access by examining CVE-2015-68472.1The default configuration of EMC VPLEX GeoSynchrony 5.4 SP1 before P3 stores cleartext NAVISPHERE GUI passwords in a log file, which allows CVE-2015-68488.5EMC Isilon OneFS 7.1.x before 7.1.1.5, 7.2.0.x before 7.2.0.3, and 7.2.1.x before 7.2.1.1, when the RFC 2307 feature is configured but SFU i CVE-2015-68497.8EMC NetWorker before 8.0.4.5, 8.1.x before 8.1.3.6, 8.2.x before 8.2.2.2, and 9.0 before build 407 allows remote attackers to cause a denial CVE-2015-68508.4EMC VPLEX GeoSynchrony 5.4 SP1 before P3 and 5.5 before Patch 1 has a default password for the root account, which allows local users to gai CVE-2015-68516.7EMC RSA SecurID Web Agent before 8.0 allows physically proximate attackers to bypass the privacy-screen protection mechanism by leveraging a CVE-2015-68524.3Directory traversal vulnerability in the API in EMC Secure Remote Services Virtual Edition 3.x before 3.10 allows remote authenticated users CVE-2015-68539.1The Domino web agent in CA Single Sign-On (aka SSO, formerly SiteMinder) R6, R12.0 before SP3 CR13, R12.0J before SP3 CR1.2, R12.5 before CR