Vulnerability identifier: #VU25128
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when processing messages with multiple S/MIME signatures. A remote attacker can send a specially crafted email message tho the victim and crash the application.Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Thunderbird: 68.0 - 68.4.2, 60.0 - 60.9.1
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2020-07/
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.