CVE-2016-4574
Published: 13 May 2016
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libksba Launchpad, Ubuntu, Debian |
precise |
Released
(1.2.0-2ubuntu0.2)
|
| trusty |
Released
(1.3.0-3ubuntu0.14.04.2)
|
|
| upstream |
Released
(1.3.4-3)
|
|
| wily |
Released
(1.3.3-1ubuntu0.15.10.1)
|
|
| xenial |
Released
(1.3.3-1ubuntu0.16.04.1)
|
|
|
Patches: upstream: http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=6be61daac047d8e6aa941eb103f8e71a1d4e3c75 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |