CVE-2015-2327: pcre perl_compatible_regular_expression_library
Vulnerability summary
CVE-2015-2327 is a high (CVSS 7.5) vulnerability in pcre perl_compatible_regular_expression_library. EPSS estimates a 4.05% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities. 2 public exploits are recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 02-12-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
1 score · 1 source · 1 versionEPSS trend
Probability
4.05%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.05% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (bugs.exim.org)
Maturity: unknown
Exploit Reference (vcs.pcre.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat5 products
- pcre< 0:8.32-15.el7
- pcre-debuginfo< 0:8.32-15.el7
- pcre-devel< 0:8.32-15.el7
- pcre-static< 0:8.32-15.el7
- pcre-tools< 0:8.32-15.el7
Debian1 product
- pcre3< 2:8.35-7.2
Pcre1 product
Ubuntu1 product
- pcre3< 1:8.31-2ubuntu2.1
4 vendors · 8 products
References
22 links- www.fortiguard.com/advisory/FG-VD-15-010/X Refsource MISC
