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CVE-2015-8381

Published: 1 December 2015

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.

Notes

AuthorNote
tyhicks
Marking 'low' since it requires PCRE to operate on untrusted regular
expressions which is not very likely
mdeslaur
introduced in 8.34

0001-Hack-in-yet-other-patch-for-a-bug-in-size-computatio.patch
in jessie

Priority

Low

Status

Package Release Status
pcre2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (10.20-3)
vivid Does not exist

wily Does not exist

xenial Not vulnerable
(10.20-3)
yakkety Not vulnerable
(10.20-3)
zesty Not vulnerable
(10.20-3)
pcre3
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Not vulnerable
(reproducer doesn't work)
upstream
Released (8.38)
vivid Ignored
(end of life)
wily
Released (2:8.35-7.1ubuntu1.3)
xenial Not vulnerable
(2:8.38-3)
yakkety Not vulnerable
(2:8.38-3)
zesty Not vulnerable
(2:8.38-3)
Patches:
upstream: http://vcs.pcre.org/pcre?view=revision&revision=1594