PT-2015-6766 · Pcre+5 · Pcre+5

Guanxing Wen · Published 2015-06-26 · Updated 2018-05-18 · CVE-2015-5073

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions PCRE versions prior to 8.38

Description The issue is related to a heap-based buffer overflow in the find fixedlength function, which can be triggered by a crafted regular expression with an excess closing parenthesis. This can cause a denial of service (crash) or allow remote attackers to obtain sensitive information from heap memory, potentially bypassing the ASLR protection mechanism.

Recommendations For versions prior to 8.38, update to version 8.38 or later to resolve the issue. As a temporary workaround, consider restricting the use of crafted regular expressions to minimize the risk of exploitation.

Exploit

Fix

DoS

Information Disclosure

Buffer Overflow

Weakness Enumeration

CWE-200

CWE-119

Related Identifiers

ALT-PU-2015-2023

CESA-2016_1025

CVE-2015-5073

MGASA-2015-0267

RHSA-2016:1025

RHSA-2016:1132

RHSA-2016:2750

RHSA-2016_1025

SUSE-SU-2016:2971-1

SUSE-SU-2016:3161-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

USN-2694-1

USN-2943-1

Affected Products

Alt Linux

Centos

Pcre

Red Hat

Suse

Ubuntu

References · 153

• 🔥 http://vcs.pcre.org/pcre?view=revision&revision=1571 · Exploit
• 🔥 https://bugs.exim.org/show_bug.cgi?id=1651 · 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://osv.dev/vulnerability/DEBIAN-CVE-2015-5073 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8393 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-5073 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8390 · Security Note
• http://rhn.redhat.com/errata/RHSA-2016-2750.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8390 · Vendor Advisory