SUSE update for MozillaThunderbird

Published: 2022-01-12

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-4126 CVE-2021-44538
CWE-ID	CWE-357 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Workstation Extension Operating systems & Components / Operating system MozillaThunderbird-translations-other Operating systems & Components / Operating system package or component MozillaThunderbird-translations-common Operating systems & Components / Operating system package or component MozillaThunderbird-debugsource Operating systems & Components / Operating system package or component MozillaThunderbird-debuginfo Operating systems & Components / Operating system package or component MozillaThunderbird Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Insufficient UI Warning of Dangerous Operations

EUVDB-ID: #VU59081

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4126

CWE-ID: CWE-357 - Insufficient UI Warning of Dangerous Operations

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attacks.

The vulnerability exists in the way Thunderbird handles signed email messages. When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the inner signed message for the signature validity. This gave the false impression that the additional contents were also covered by the digital signature.

Mitigation

Update the affected package MozillaThunderbird to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Workstation Extension: 15-SP3

MozillaThunderbird-translations-other: before 91.4.1-8.48.1

MozillaThunderbird-translations-common: before 91.4.1-8.48.1

MozillaThunderbird-debugsource: before 91.4.1-8.48.1

MozillaThunderbird-debuginfo: before 91.4.1-8.48.1

MozillaThunderbird: before 91.4.1-8.48.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220058-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

EUVDB-ID: #VU59080

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-44538

CWE-ID: CWE-119 - Memory corruption