CVE-2015-8388

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.

• CWE-119
• CWE-185

• 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

Published

Dec 2, 2015

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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