#VU87890 Buffer overflow in PCRE - CVE-2015-2327
Published: March 28, 2024
Vulnerability identifier: #VU87890
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-2327
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PCRE
PCRE
Software vendor:
PCRE
PCRE
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to PCRE mishandles the /(((a2)|(a*)g<-1>))*/ pattern and related patterns with certain internal recursive back references. A remote attacker can cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression.
Remediation
Install updates from vendor's website.
External links
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
- http://www.fortiguard.com/advisory/FG-VD-15-010/
- http://www.openwall.com/lists/oss-security/2015/11/29/1
- http://www.securityfocus.com/bid/74924
- https://bugs.exim.org/show_bug.cgi?id=1503
- https://jira.mongodb.org/browse/SERVER-17252