Debian update for thunderbird



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
Subscribe 		thunderbird (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU48755

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

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

Update thunderbird package to version 1:78.5.1-1~deb10u1.

Vulnerable software versions

thunderbird (Debian package): 1:60.8.0-1~deb10u1 - 78.5.0-1~deb10u1

CPE2.3 External links

http://www.debian.org/security/2020/dsa-4802


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.



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