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)
|
|
| 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 |