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Vulnerability details: VCID-6spz-b8a9-aaaf
Vulnerability ID VCID-6spz-b8a9-aaaf
Aliases CVE-2015-6838
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-6838.html
generic_textual Medium http://php.net/ChangeLog-5.php
rhas Moderate https://access.redhat.com/errata/RHSA-2016:0457
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.02776 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
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epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03793 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03804 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.03804 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.04377 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
epss 0.13002 https://api.first.org/data/v1/epss?cve=CVE-2015-6838
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1260711
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6834
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6835
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6836
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6837
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6838
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2015-6838
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2015-6838
generic_textual Low https://ubuntu.com/security/notices/USN-2758-1
generic_textual Low http://www.openwall.com/lists/oss-security/2015/09/07/5
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-6838.html
http://php.net/ChangeLog-5.php
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-6838.json
https://api.first.org/data/v1/epss?cve=CVE-2015-6838
https://bugs.php.net/bug.php?id=69782
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6834
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6835
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6836
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6837
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6838
https://security.gentoo.org/glsa/201606-10
https://ubuntu.com/security/notices/USN-2758-1
http://www.debian.org/security/2015/dsa-3358
http://www.openwall.com/lists/oss-security/2015/09/07/5
http://www.securityfocus.com/bid/76733
http://www.securitytracker.com/id/1033548
1260711 https://bugzilla.redhat.com/show_bug.cgi?id=1260711
CVE-2015-6838 https://nvd.nist.gov/vuln/detail/CVE-2015-6838
RHSA-2016:0457 https://access.redhat.com/errata/RHSA-2016:0457
USN-2758-1 https://usn.ubuntu.com/2758-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6838
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6838
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.90871
EPSS Score 0.02776
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.