PT-2015-5717 · Philip Hazel+2 · Pcre+2

Published 2015-12-01 · Updated 2018-01-05 · CVE-2015-2327

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions PCRE versions prior to 8.36

Description The issue is related to the handling of certain internal recursive back references in regular expressions. Specifically, patterns like /(((a2)|(a*)g<-1>))*/ can cause a denial of service (segmentation fault) or possibly have other unspecified impacts when encountered by affected software. This can be triggered by a crafted regular expression, for example, through a JavaScript RegExp object.

Recommendations For PCRE versions prior to 8.36, update to version 8.36 or later to resolve the issue.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2015-2327

RHSA-2016:2750

SUSE-SU-2016:2971-1

SUSE-SU-2016:3161-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

USN-2943-1

Affected Products

Pcre

Suse

Ubuntu

References · 120

• 🔥 http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup · Exploit
• 🔥 https://bugs.exim.org/show_bug.cgi?id=1503 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8389 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8384 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8388 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8380 · Security Note
• https://ubuntu.com/security/CVE-2015-5073 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8387 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-2327 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8394 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8381 · Security Note
• https://ubuntu.com/security/CVE-2015-8381 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8395 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2326 · Security Note
• https://ubuntu.com/security/notices/USN-2943-1 · Vendor Advisory