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Vigil@nce - Qt5: out-of-bounds memory reading via QRadialFetchSimd

May 2021 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability

SYNTHESIS OF THE VULNERABILITY

 Impacted products: Fedora.
 Severity: 2/4.
 Consequences: data reading, denial of service on service, denial
of service on client.
 Provenance: document.
 Confidence: confirmed by the editor (5/5).
 Creation date: 17/03/2021.

DESCRIPTION OF THE VULNERABILITY

An attacker can force a read at an invalid address via
QRadialFetchSimd() of Qt5, in order to trigger a denial of
service, or to obtain sensitive information.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Qt5-out-of-bounds-memory-reading-via-QRadialFetchSimd-34873


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