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Vigil@nce - GnuTLS: NULL pointer dereference via Second Handshake No_renegotiation

November 2020 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2

SYNTHESIS OF THE VULNERABILITY

Impacted products: Fedora, openSUSE Leap, Slackware, SLES, Ubuntu, Unix (platform) not comprehensive.

Severity: 2/4.

Consequences: denial of service on client.

Provenance: internet server.

Confidence: confirmed by the editor (5/5).

Creation date: 07/09/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker can force a NULL pointer to be dereferenced via Second Handshake No_renegotiation of GnuTLS, in order to trigger a denial of service.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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