CVE-2015-8381

critical

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

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

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2015-12-02

Updated: 2018-01-05

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical