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Vulnerability of F5 BIG-IP: denial of service via DNS Over TCP

Synthesis of the vulnerability 

An attacker can trigger a fatal error via DNS Over TCP of F5 BIG-IP, in order to trigger a denial of service.
Vulnerable systems: BIG-IP Hardware, TMOS.
Severity of this threat: 2/4.
Creation date: 28/10/2020.
Références of this weakness: CERTFR-2020-AVI-689, K23278332, VIGILANCE-VUL-33704.

Description of the vulnerability 

An attacker can trigger a fatal error via DNS Over TCP of F5 BIG-IP, in order to trigger a denial of service.
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This vulnerability alert impacts software or systems such as BIG-IP Hardware, TMOS.

Our Vigil@nce team determined that the severity of this computer weakness alert is medium.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this computer vulnerability.

Solutions for this threat 

F5 BIG-IP: fixed versions for DNS Over TCP.
Fixed versions are indicated in information sources.
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