CVE-2020-29652
Published: 17 December 2020
A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers.
Notes
| Author | Note |
|---|---|
| jdstrand | snapd contains an embedded copy of golang-go.crypto lxd in 18.04 LTS and earlier contains an embedded copy of golang-go.crypto |
| mdeslaur | snapd and lxd only use the terminal sub-package, not the ssh part of golang-go.crypto, so they are not vulnerable |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
golang-go.crypto Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Needed
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| impish |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| jammy |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| kinetic |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| lunar |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| mantic |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1:0.0~git20201221.eec23a3-1)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8%5E%21/#F0 |
||
|
kubernetes Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
lxd Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Not vulnerable
(code-not-present)
|
|
| groovy |
Not vulnerable
(code-not-present)
|
|
| hirsute |
Not vulnerable
(code-not-present)
|
|
| impish |
Not vulnerable
(code-not-present)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
|
|
|
snapd Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Not vulnerable
|
|
| groovy |
Not vulnerable
|
|
| hirsute |
Not vulnerable
|
|
| impish |
Not vulnerable
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Not vulnerable
|
|
| lunar |
Not vulnerable
|
|
| mantic |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
|
|
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |