CVE-2017-6891
Published: 22 May 2017
Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libtasn1-3 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
libtasn1-6 Launchpad, Ubuntu, Debian |
trusty |
Released
(3.4-3ubuntu0.5)
|
| upstream |
Released
(4.10-1.1)
|
|
| xenial |
Released
(4.7-3ubuntu0.16.04.2)
|
|
| yakkety |
Released
(4.9-4ubuntu0.1)
|
|
| zesty |
Released
(4.10-1ubuntu0.1)
|
|
|
Patches: upstream: https://git.savannah.gnu.org/gitweb/?p=libtasn1.git;a=commit;h=5520704d075802df25ce4ffccc010ba1641bd484 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |