CVE-2021-43528

2021-12-0800:00:00

ubuntu.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

52.9%

JSON

Thunderbird unexpectedly enabled JavaScript in the composition area. The
JavaScript execution context was limited to this area and did not receive
chrome-level privileges, but could be used as a stepping stone to further
an attack with other vulnerabilities. This vulnerability affects
Thunderbird < 91.4.0.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchthunderbird< 1:91.5.0+build1-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchthunderbird< 1:91.5.0+build1-0ubuntu0.20.04.1UNKNOWN
ubuntu21.10noarchthunderbird< 1:91.5.0+build1-0ubuntu0.21.10.1UNKNOWN
ubuntu22.04noarchthunderbird< 1:91.4.0+build1-0ubuntu1UNKNOWN
ubuntu22.10noarchthunderbird< 1:91.4.0+build1-0ubuntu1UNKNOWN
ubuntu23.04noarchthunderbird< 1:91.4.0+build1-0ubuntu1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	thunderbird	< 1:91.5.0+build1-0ubuntu0.18.04.1	UNKNOWN
ubuntu	20.04	noarch	thunderbird	< 1:91.5.0+build1-0ubuntu0.20.04.1	UNKNOWN
ubuntu	21.10	noarch	thunderbird	< 1:91.5.0+build1-0ubuntu0.21.10.1	UNKNOWN
ubuntu	22.04	noarch	thunderbird	< 1:91.4.0+build1-0ubuntu1	UNKNOWN
ubuntu	22.10	noarch	thunderbird	< 1:91.4.0+build1-0ubuntu1	UNKNOWN
ubuntu	23.04	noarch	thunderbird	< 1:91.4.0+build1-0ubuntu1	UNKNOWN