vulnerability

Debian: CVE-2021-20257: qemu -- security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Apr 12, 2021
Added
Apr 12, 2021
Modified
Mar 30, 2026

Description

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Solution

debian-upgrade-qemu
Title
Rapid7 Labs

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