CVE-2016-3191

HIGH

Description

The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542.

References

http://rhn.redhat.com/errata/RHSA-2016-1025.html

http://vcs.pcre.org/pcre?view=revision&revision=1631

http://vcs.pcre.org/pcre2?view=revision&revision=489

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

http://www.securityfocus.com/bid/84810

http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886

https://access.redhat.com/errata/RHSA-2016:1132

https://bto.bluecoat.com/security-advisory/sa128

https://bugs.debian.org/815920

https://bugs.debian.org/815921

https://bugs.exim.org/show_bug.cgi?id=1791

https://bugzilla.redhat.com/show_bug.cgi?id=1311503

https://www.tenable.com/security/tns-2016-18

Details

Source: MITRE

Published: 2016-03-17

Updated: 2018-01-05

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL