Vulnerability Description
PCRE before 8.36 mishandles the /(((a\2)|(a*)\g<-1>))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pcre | Perl Compatible Regular Expression Library | <= 8.35 |
Related Weaknesses (CWE)
References
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupExploit
- 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=1503Exploit
- https://jira.mongodb.org/browse/SERVER-17252
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupExploit
- 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=1503Exploit
- https://jira.mongodb.org/browse/SERVER-17252
FAQ
What is CVE-2015-2327?
CVE-2015-2327 is a vulnerability with a CVSS score of 7.5 (HIGH). PCRE before 8.36 mishandles the /(((a\2)|(a*)\g<-1>))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmen...
How severe is CVE-2015-2327?
CVE-2015-2327 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-2327?
Check the references section above for vendor advisories and patch information. Affected products include: Pcre Perl Compatible Regular Expression Library.