Buffer overflow in Pcre
CVE-2005-4872
Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.023 (82.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.avaya.com/elmodocs2/security/ASA-2007-493.htm
- www.mandriva.com/security/advisories (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html (vendor-advisory)
- secunia.com/advisories/28658 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/27773 (Vendor Advisory, third-party-advisory)
- www.securityfocus.com/bid/26462 (vdb-entry)
- www.redhat.com/support/errata/RHSA-2007-1052.html (vendor-advisory)
- www.novell.com/linux/security/advisories/2007_62_pcre.html (vendor-advisory)
- www.pcre.org/changelog.txt
- secunia.com/advisories/27869 (Vendor Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2005-4872?
- CVE-2005-4872 is a vulnerability in Pcre, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2005-12-31.
- Is CVE-2005-4872 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.