Vulnerability Report

CVE-2016-3191

Title: Pcre Pcre2 RCE

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2016-3191.

CWE Category CWE-119
Published Date Mar 17, 2016
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 9.8 CVSS v3.0
Exploit Probability (EPSS)
8.43%

Vulnerability Summary

CVE-2016-3191: 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.

Impacted Vendors

P
pcre 2
P
perl 1

Reference Links

http://rhn.redhat.com/errata/RHSA-2016-1025.html http://vcs.pcre.org/pcre2?view=revision&revision=489 http://vcs.pcre.org/pcre?view=revision&revision=1631 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 http://rhn.redhat.com/errata/RHSA-2016-1025.html http://vcs.pcre.org/pcre2?view=revision&revision=489 http://vcs.pcre.org/pcre?view=revision&revision=1631 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
CVSS v3.0
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-3191 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.