Remote code execution in Mozilla Thunderbird



Published: 2020-12-02
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-26970
CWE-ID CWE-121
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Mozilla Thunderbird
Client/Desktop applications / Messaging software

Vendor Mozilla

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU48755

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-26970

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when parsing SMTP server responses. A remote attacker can trick the victim to connect to a malicious SMTP server, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 78.0 - 78.5.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2020-53/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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