CVE-2021-29949

2021-04-2200:00:00

ubuntu.com

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

29.3%

JSON

When loading the shared library that provides the OTR protocol
implementation, Thunderbird will initially attempt to open it using a
filename that isn’t distributed by Thunderbird. If a computer has already
been infected with a malicious library of the alternative filename, and the
malicious library has been copied to a directory that is contained in the
search path for executable libraries, then Thunderbird will load the
incorrect library. 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