Vulnerability identifier: #VU24498

Vulnerability 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-2020-6173

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
The Update Framework (TUF)
Client/Desktop applications / Other client software

Vendor: The Update Framework

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation. A remote attacker can can create many invalid signatures on a metadata file, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

The Update Framework (TUF): 0.7.2 - 0.12.1

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External links
http://github.com/theupdateframework/tuf/commits/develop
http://github.com/theupdateframework/tuf/issues/973

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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.