CVE-2021-23992

2021-04-1300:00:00

ubuntu.com

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

35.2%

JSON

Thunderbird did not check if the user ID associated with an OpenPGP key has
a valid self signature. An attacker may create a crafted version of an
OpenPGP key, by either replacing the original user ID, or by adding another
user ID. If Thunderbird imports and accepts the crafted key, the
Thunderbird user may falsely conclude that the false user ID belongs to the
correspondent. This vulnerability affects Thunderbird < 78.9.1.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchthunderbird< 1:78.11.0+build1-0ubuntu0.18.04.2UNKNOWN
ubuntu20.04noarchthunderbird< 1:78.11.0+build1-0ubuntu0.20.04.2UNKNOWN
ubuntu20.10noarchthunderbird< 1:78.11.0+build1-0ubuntu0.20.10.2UNKNOWN
ubuntu21.04noarchthunderbird< 1:78.11.0+build1-0ubuntu0.21.04.2UNKNOWN
ubuntu21.10noarchthunderbird< 1:78.11.0+build1-0ubuntu2UNKNOWN
ubuntu22.04noarchthunderbird< 1:78.11.0+build1-0ubuntu2UNKNOWN
ubuntu22.10noarchthunderbird< 1:78.11.0+build1-0ubuntu2UNKNOWN
ubuntu23.04noarchthunderbird< 1:78.11.0+build1-0ubuntu2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu0.18.04.2	UNKNOWN
ubuntu	20.04	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu0.20.04.2	UNKNOWN
ubuntu	20.10	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu0.20.10.2	UNKNOWN
ubuntu	21.04	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu0.21.04.2	UNKNOWN
ubuntu	21.10	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu2	UNKNOWN
ubuntu	22.04	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu2	UNKNOWN
ubuntu	22.10	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu2	UNKNOWN
ubuntu	23.04	noarch	thunderbird	< 1:78.11.0+build1-0ubuntu2	UNKNOWN