CVE-2015-8386
Published: 1 December 2015
PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) 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 | 0001-Fix-buffer-overflow-for-lookbehind-within-mutually-r.patch in jessie |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
pcre2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
|
|
| vivid |
Does not exist
|
|
| wily |
Does not exist
|
|
| xenial |
Not vulnerable
|
|
| yakkety |
Not vulnerable
|
|
| zesty |
Not vulnerable
|
|
|
pcre3 Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
(code not present)
|
| trusty |
Released
(1:8.31-2ubuntu2.2)
|
|
| 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=1560 |
||
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 |