Vigil@nce - FLAC: out-of-bounds memory reading via FLAC__bitreader_read_rice_signed_block
March 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, Fedora, Android OS, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Consequences: data reading, denial of service on service, denial of service on client.
Confidence: confirmed by the editor (5/5).
Creation date: 28/12/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a read at an invalid address via FLAC__bitreader_read_rice_signed_block() of FLAC, in order to trigger a denial of service, or to obtain sensitive information.
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