Vulnerability CVE-2016-3191
Published: 2016-03-17   Modified: 2016-03-18

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.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
PCRE -> PCRE 
PCRE -> Pcre2 

 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-01.ibm.com/support/docview.wss?uid=isg3T1023886
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/84810
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
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