CVE-2015-8391

CRITICAL

PCRE < 8.38 - Denial of Service via Crafted Regular Expression with Nested [:

Title source: llm
STIX 2.1

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.

References (13)

Core 13
Core References
Mailing List, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2015/11/29/1
Third Party Advisory vendor-advisory
https://access.redhat.com/errata/RHSA-2016:1132
Third Party Advisory, VDB Entry vdb-entry
http://www.securityfocus.com/bid/82990
Third Party Advisory vendor-advisory
http://rhn.redhat.com/errata/RHSA-2016-1025.html
Third Party Advisory vendor-advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/201607-02

Scores

CVSS v3 9.8
EPSS 0.0640
EPSS Percentile 91.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (22)
fedoraproject/fedora 22
oracle/linux 7
pcre/pcre < 8.38
php/php 5.5.0 - 5.5.32
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_eus 7.2
redhat/enterprise_linux_eus 7.3
redhat/enterprise_linux_eus 7.4
redhat/enterprise_linux_eus 7.5
redhat/enterprise_linux_eus 7.6
... and 12 more
Published Dec 02, 2015
Tracked Since Feb 18, 2026