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Vulnerability of FLAC: out-of-bounds memory reading via FLAC__bitreader_read_rice_signed_block

Synthesis 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.
Vulnerable systems: Debian, Fedora, Android OS, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this threat: 2/4.
Creation date: 28/12/2020.
Références of this weakness: CVE-2020-0499, DLA-2514-1, FEDORA-2021-df42ebeac2, openSUSE-SU-2020:2348-1, openSUSE-SU-2020:2350-1, SUSE-SU-2020:3933-1, SUSE-SU-2021:0017-1, VIGILANCE-VUL-34208.

Description of the vulnerability 

An attacker can force a read at an invalid address via FLAC__bitreader_read_rice...
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This cybersecurity vulnerability impacts software or systems such as Debian, Fedora, Android OS, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this weakness alert.

Solutions for this threat 

This vulnerability workaround will be public soon.
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