Vigil@nce - libQt5: NULL pointer dereference via QGifHandler
January 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian.
Consequences: denial of service on service, denial of service on client.
Confidence: confirmed by the editor (5/5).
Creation date: 03/01/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced via QGifHandler() of libQt5, in order to trigger a denial of service.
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