Vigil@nce - XAR: NULL pointer dereference via xar_unserialize
February 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora.
Consequences: denial of service on service, denial of service on client.
Confidence: confirmed by the editor (5/5).
Creation date: 03/02/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced via xar_unserialize() of XAR, in order to trigger a denial of service.
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