CVE-2015-8391

9.8 CRITICAL
Published: December 02, 2015 Modified: May 06, 2026
View on NVD

Description

The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
Source: cve@mitre.org
Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1025.html
Source: cve@mitre.org
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html
Source: cve@mitre.org
Third Party Advisory
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
Source: cve@mitre.org
Broken Link
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
Source: cve@mitre.org
Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Source: cve@mitre.org
Third Party Advisory
http://www.securityfocus.com/bid/82990
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2016:1132
Source: cve@mitre.org
Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa128
Source: cve@mitre.org
Permissions Required
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
Source: cve@mitre.org
Third Party Advisory
https://security.gentoo.org/glsa/201607-02
Source: cve@mitre.org
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230216-0002/
Source: cve@mitre.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1025.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.securityfocus.com/bid/82990
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2016:1132
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa128
Source: af854a3a-2127-422b-91ae-364da2661108
Permissions Required
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.gentoo.org/glsa/201607-02
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230216-0002/
Source: af854a3a-2127-422b-91ae-364da2661108

26 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
6.4%
91th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

fedoraproject pcre php redhat oracle

Related CVEs

CVE-2026-6222 5.3
CVE-2026-40003 5.1
CVE-2026-44597 3.7
CVE-2026-6278 N/A
CVE-2026-41484 5.3