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ubuntucveUbuntu.comUB:CVE-2021-43565
HistorySep 06, 2022 - 12:00 a.m.

CVE-2021-43565

2022-09-0600:00:00
ubuntu.com
ubuntu.com
23

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

35.0%

The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of
golang.org/x/crypto allows an attacker to panic an SSH server.

Bugs

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

35.0%