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Vulnerability of QEMU: out-of-bounds memory reading via ati_cursor_define

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via ati_cursor_define() of QEMU, in order to trigger a denial of service, or to obtain sensitive information.
Impacted systems: QEMU.
Severity of this alert: 2/4.
Creation date: 31/12/2020.
Références of this alert: CVE-2019-20808, VIGILANCE-VUL-34223.

Description of the vulnerability 

An attacker can force a read at an invalid address via ati_cursor_define() of QE...
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This computer vulnerability alert impacts software or systems such as QEMU.

Our Vigil@nce team determined that the severity of this computer threat alert is medium.

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

An attacker with a expert ability can exploit this security vulnerability.

Solutions for this threat 

This vulnerability solution will be public soon.
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