CVE-2016-1283
Published: 2 January 2016
The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, 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
| Author | Note |
|---|---|
| mdeslaur | introduced in 8.34 |
| ebarretto | pcre2 not affected as vulnerable code is not present |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
pcre2 Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Not vulnerable
(code not present)
|
|
| cosmic |
Not vulnerable
(code not present)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| vivid |
Does not exist
|
|
| wily |
Does not exist
|
|
| xenial |
Not vulnerable
(code not present)
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Ignored
(end of life)
|
|
|
pcre3 Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(2:8.38-3.1)
|
| bionic |
Not vulnerable
(2:8.38-3.1)
|
|
| cosmic |
Not vulnerable
(2:8.38-3.1)
|
|
| precise |
Not vulnerable
|
|
| trusty |
Not vulnerable
(1:8.31-2ubuntu2.1)
|
|
| upstream |
Released
(2:8.38-3.1)
|
|
| vivid |
Ignored
(end of life)
|
|
| wily |
Released
(2:8.35-7.1ubuntu1.3)
|
|
| xenial |
Not vulnerable
(2:8.38-3.1)
|
|
| yakkety |
Not vulnerable
(2:8.38-3.1)
|
|
| zesty |
Not vulnerable
(2:8.38-3.1)
|
|
|
Patches: upstream: http://vcs.pcre.org/pcre?view=revision&revision=1636 |
||
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 |