CVE-2015-2326
Published: 1 April 2015
The pcre_compile2 function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code and cause a denial of service (out-of-bounds read) via regular expression with a group containing both a forward referencing subroutine call and a recursive back reference, as demonstrated by "((?+1)(\1))/".
Notes
Author | Note |
---|---|
tyhicks | Valgrind detects a 1-byte invalid read on Vivid through Trusty |
mdeslaur | was supposed to be fixed in wily (2:8.35-7ubuntu2) but got reverted in (2:8.35-7ubuntu5) by mistake CVE-2015-2325_CVE-2015-2326_CVE-2015-3210_CVE-2015-5073.patch in jessie |
Priority
Status
Package | Release | Status |
---|---|---|
pcre3 Launchpad, Ubuntu, Debian |
lucid |
Ignored
(end of life)
|
precise |
Not vulnerable
(8.12-4)
|
|
trusty |
Released
(1:8.31-2ubuntu2.1)
|
|
upstream |
Needed
|
|
utopic |
Ignored
(end of life)
|
|
vivid |
Released
(2:8.35-3.3ubuntu1.1)
|
|
wily |
Released
(2:8.35-7.1ubuntu1.3)
|
|
Patches: upstream: http://vcs.pcre.org/pcre?view=revision&revision=1529 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |