Vulnerability identifier: #VU84576
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-451
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mozilla Thunderbird
Client/Desktop applications /
Messaging software
Vendor: Mozilla
Description
The vulnerability allows a remote attacker to spoof email content.
The vulnerability exists due to incorrect processing of user-supplied data. When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to spoof an email message.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Thunderbird: 115.0 - 115.5.2, 102.0 - 102.15.1
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2023-55/
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.