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Vigil@nce - ProFTPD: NULL pointer dereference via sk_X509_REVOKED_value tls_verify_crl

January 2020 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

Impacted products: Debian, Fedora, openSUSE Leap, ProFTPD, SLES.

Severity: 2/4.

Consequences: denial of service on service.

Provenance: user shell.

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

Creation date: 27/11/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can force a NULL pointer to be dereferenced via sk_X509_REVOKED_value() tls_verify_crl() of ProFTPD, in order to trigger a denial of service.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

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




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