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CVE-2015-3217

Published: Dec 13, 2016Updated: May 6, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
7.5CVSSHIGH
EPSS Score
6.2%
Top 7.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

n/an/a
pcre2pcre
Library
OSS Libraries / generic-library
pcrepcre
LibraryLibrary
OSS Libraries / generic-library
powerkvmibmEnterprise Software / itsm-monitoring
pcreoss-projectOSS Librariesaka perl compatible regular expression library, pcre2
ibmcommercialUSEnterprise Softwareaka international business machines

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2016:1132
access.redhat.com
http://vcs.pcre.org/pcre?view=revision&revision=1566
vcs.pcre.org
https://bugs.exim.org/show_bug.cgi?id=1638
bugs.exim.org
and 7 more references View all →

Timeline

Published
Dec 13, 2016
Last Updated
May 6, 2026

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