CVE-2015-8388

Name: CVE-2015-8388
Creator: NVD / NIST
Published: 2015-12-02T01:59:12.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.59%

Last modified Jun 17, 2026

CVE-2015-8388 is a vulnerability of currently unknown severity. PCRE before 8.38 mishandles the /(?=di(?<=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis, 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.. EPSS estimates a 6.59% chance of exploitation in the next 30 days.

Description

PCRE before 8.38 mishandles the /(?=di(?<=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis, 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.

Metrics

EPSS Probability

6.59%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Oracle	Linux	7
Pcre	Perl Compatible Regular Expression Library	<= 8.37

References

http://rhn.redhat.com/errata/RHSA-2016-1025.html
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupRelease Notes, Vendor Advisory
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
http://www.securityfocus.com/bid/85576Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2016:1132
https://bto.bluecoat.com/security-advisory/sa128Third Party Advisory
https://security.gentoo.org/glsa/201607-02
http://rhn.redhat.com/errata/RHSA-2016-1025.html
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupRelease Notes, Vendor Advisory
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
http://www.securityfocus.com/bid/85576Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2016:1132
https://bto.bluecoat.com/security-advisory/sa128Third Party Advisory
https://security.gentoo.org/glsa/201607-02

Timeline

Published: Dec 2, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8388?

How severe is CVE-2015-8388?

Severity scoring for CVE-2015-8388 is pending analysis. The EPSS model estimates a 6.59% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8388?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST