CVE-2021-46848
Published: 25 October 2022
GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.
Notes
Author | Note |
---|---|
mdeslaur |
out of bounds read in API when using invalid value, not likely to be exploitable in any way |
Priority
Status
Package | Release | Status |
---|---|---|
libtasn1-6
Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Needs triage
|
|
jammy |
Needs triage
|
|
kinetic |
Ignored
(end of life, was needs-triage)
|
|
lunar |
Ignored
(end of life, was needs-triage)
|
|
mantic |
Not vulnerable
(4.19.0-2)
|
|
noble |
Not vulnerable
(4.19.0-2)
|
|
trusty |
Needs triage
|
|
upstream |
Released
(4.19.0-2)
|
|
xenial |
Released
(4.7-3ubuntu0.16.04.3+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
Patches:
upstream: https://gitlab.com/gnutls/libtasn1/-/commit/44a700d2051a666235748970c2df047ff207aeb5 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.1 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |