CVE-2015-8381

HIGH

Description

The compile_regex function in pcre_compile.c in PCRE before 8.38 and pcre2_compile.c in PCRE2 before 10.2x mishandles the /(?J:(?|(:(?|(?'R')(\k'R')|((?'R')))H'Rk'Rf)|s(?'R'))))/ and /(?J:(?|(:(?|(?'R')(\z(?|(?'R')(\k'R')|((?'R')))k'R')|((?'R')))H'Ak'Rf)|s(?'R')))/ patterns, and related patterns with certain group references, 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.

References

http://rhn.redhat.com/errata/RHSA-2016-2750.html

http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup

http://www.openwall.com/lists/oss-security/2015/11/29/1

http://www.securityfocus.com/bid/76187

https://access.redhat.com/errata/RHSA-2016:1132

https://bto.bluecoat.com/security-advisory/sa128

https://bugs.exim.org/show_bug.cgi?id=1667

https://bugs.exim.org/show_bug.cgi?id=1672

https://security.gentoo.org/glsa/201607-02

Details

Source: MITRE

Published: 2015-12-02

Updated: 2018-01-05

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH