Critical severity · published Dec 2, 2015
CVE-2015-8389
PCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to cause a denial of service (infinite recursion) or possibly have…
9.8
CVSS
3.9%
EPSS
No
On KEV
Description
PCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to cause a denial of service (infinite recursion) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.9% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
5.5.0 before 5.5.32; 5.6.0 before 5.6.18; 7.0.0 before 7.0.3 · source: NVD
FE
Fedora · Fedoraproject
22 · source: NVD
PC
Perl Compatible Regular Expression Library · Pcre
through 8.37 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8389
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-8389
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
Release Notes
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
Mailing List
http://www.openwall.com/lists/oss-security/2015/11/29/1
Third Party Advisory
http://www.securityfocus.com/bid/82990
Permissions Required
https://bto.bluecoat.com/security-advisory/sa128
Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
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