Vulnerability Description
PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pcre | Pcre2 | 10.10 |
| Pcre | Pcre | 7.8 |
| Ibm | Powerkvm | 2.1 |
Related Weaknesses (CWE)
References
- http://rhn.redhat.com/errata/RHSA-2016-1025.html
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre?view=revision&revision=1566Patch
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/06/03/7Mailing List
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h
- http://www.securityfocus.com/bid/75018Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bugs.exim.org/show_bug.cgi?id=1638ExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1228283Issue Tracking
- http://rhn.redhat.com/errata/RHSA-2016-1025.html
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre?view=revision&revision=1566Patch
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/06/03/7Mailing List
FAQ
What is CVE-2015-3217?
CVE-2015-3217 is a vulnerability with a CVSS score of 7.5 (HIGH). PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expre...
How severe is CVE-2015-3217?
CVE-2015-3217 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-2015-3217?
Check the references section above for vendor advisories and patch information. Affected products include: Pcre Pcre2, Pcre Pcre, Ibm Powerkvm.