CVE-2015-2327

pcre: infinite recursion compiling pattern with zero-repeated groups that include recursive back reference (8.36/19)

Published Dec 2, 2015 CVSS 2.0 · 7.5 High EPSS 4.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2015-2420 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.
Ubuntu USN Ubuntu USN USN-2943-1 PCRE vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.06026}

epss

{'score': 0.0453}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 5:10 AM
Reserved
Mar 18, 2015, 12:00 AM
Status
Modified
Published
Dec 2, 2015, 1:59 AM
Modified
Jun 17, 2026, 12:23 AM
Severity
Moderate
Public date
Jul 11, 2014, 12:00 AM