CVE-2016-1283

high-risk
Published 2016-01-03

The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

Do I need to act?

~
2.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Pcre
Php

Affected Vendors

Pcre Oracle Php Fedoraproject

References (24)

Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178193.html
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178955.html
Third Party Advisory http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory http://www.securityfocus.com/bid/79825
Broken Link http://www.securitytracker.com/id/1034555
Third Party Advisory http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slack...
Third Party Advisory https://access.redhat.com/errata/RHSA-2016:1132
Permissions Required https://bto.bluecoat.com/security-advisory/sa128
Exploit https://bugs.exim.org/show_bug.cgi?id=1767
Third Party Advisory https://security.gentoo.org/glsa/201607-02
Third Party Advisory https://www.tenable.com/security/tns-2016-18
Third Party Advisory https://www.tenable.com/security/tns-2017-14
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178193.html
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178955.html
Third Party Advisory http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory http://www.securityfocus.com/bid/79825
Broken Link http://www.securitytracker.com/id/1034555
Third Party Advisory http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slack...
Third Party Advisory https://access.redhat.com/errata/RHSA-2016:1132
Permissions Required https://bto.bluecoat.com/security-advisory/sa128
and 4 more references
50
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 6/34 · Minimal
Exposure 12/34 · Low