PT-2016-5407 · Kde+6 · Konqueror+7

Tomas Hoger · Published 2016-03-17 · Updated 2018-01-05 · CVE-2016-3191

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions PCRE versions prior to 8.39 PCRE2 versions prior to 10.22

Description The issue arises from the compile branch function in pcre compile.c and pcre2 compile.c, which mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses. This allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression. The vulnerability has been demonstrated by a JavaScript RegExp object encountered by Konqueror.

Recommendations For PCRE versions prior to 8.39, update to version 8.39 or later to resolve the issue. For PCRE2 versions prior to 10.22, update to version 10.22 or later to resolve the issue. As a temporary workaround, consider restricting the use of nested parentheses in conjunction with (*ACCEPT) substrings in regular expressions until a patch is available.

Exploit

Fix

RCE

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2016-1611

ALT-PU-2016-1807

CESA-2016_1025

CVE-2016-3191

DLA-441-1

MGASA-2016-0204

OPENSUSE-SU-2024:10277-1

OPENSUSE-SU-2024:10447-1

RHSA-2016:1025

RHSA-2016:1132

RHSA-2016_1025

SUSE-SU-2016:2971-1

SUSE-SU-2016:3161-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

USN-2943-1

ZDI-16-477

Affected Products

Alt Linux

Centos

Konqueror

Pcre

Pcre2

Red Hat

Suse

Ubuntu

References · 156

• 🔥 https://bugs.exim.org/show_bug.cgi?id=1791 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3217 · Security Note
• https://ubuntu.com/security/CVE-2015-8389 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8383 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8393 · Security Note
• https://ubuntu.com/security/CVE-2015-8394 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2326 · Security Note
• https://ubuntu.com/security/CVE-2015-8383 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8393 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8390 · Security Note
• https://ubuntu.com/security/CVE-2015-8390 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2328 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8382 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3191 · Security Note
• https://ubuntu.com/security/CVE-2016-3191 · Vendor Advisory