CVE-2015-8389
Published: 1 December 2015
PCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to cause a denial of service (infinite recursion) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
Notes
Author | Note |
---|---|
tyhicks | Issue affects PCRE3 only Marking 'low' since it requires PCRE to operate on untrusted regular expressions which is not very likely |
mdeslaur | introduced in 8.35 0001-Fix-infinite-recursion-in-the-JIT-compiler-when-cert.patch in jessie |
Priority
Status
Package | Release | Status |
---|---|---|
pcre2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
upstream |
Not vulnerable
|
|
trusty |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
pcre3 Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Not vulnerable
(code not present)
|
|
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=1577 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |