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 |