Critical severity · published Dec 2, 2015
CVE-2015-8386
PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer…
9.8
CVSS
6.9%
EPSS
No
On KEV
Description
PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) 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)6.9% · higher than 94% 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
LI
Linux · Oracle
7 · source: NVD
PC
Perl Compatible Regular Expression Library · Pcre
through 8.37 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8386
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-8386
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1025.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html
Broken Link
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
Third Party Advisory
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
Mailing List
http://www.openwall.com/lists/oss-security/2015/11/29/1
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