vulnerability

Amazon Linux AMI 2: CVE-2021-20196: Security patch for qemu (ALAS-2023-2061)

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Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
May 26, 2021
Added
Jun 6, 2023
Modified
Jun 6, 2023

Description

A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Solution(s)

amazon-linux-ami-2-upgrade-ivshmem-toolsamazon-linux-ami-2-upgrade-qemuamazon-linux-ami-2-upgrade-qemu-audio-alsaamazon-linux-ami-2-upgrade-qemu-audio-ossamazon-linux-ami-2-upgrade-qemu-audio-paamazon-linux-ami-2-upgrade-qemu-audio-sdlamazon-linux-ami-2-upgrade-qemu-block-curlamazon-linux-ami-2-upgrade-qemu-block-dmgamazon-linux-ami-2-upgrade-qemu-block-iscsiamazon-linux-ami-2-upgrade-qemu-block-nfsamazon-linux-ami-2-upgrade-qemu-block-rbdamazon-linux-ami-2-upgrade-qemu-block-sshamazon-linux-ami-2-upgrade-qemu-commonamazon-linux-ami-2-upgrade-qemu-debuginfoamazon-linux-ami-2-upgrade-qemu-guest-agentamazon-linux-ami-2-upgrade-qemu-imgamazon-linux-ami-2-upgrade-qemu-kvmamazon-linux-ami-2-upgrade-qemu-kvm-coreamazon-linux-ami-2-upgrade-qemu-system-aarch64amazon-linux-ami-2-upgrade-qemu-system-aarch64-coreamazon-linux-ami-2-upgrade-qemu-system-x86amazon-linux-ami-2-upgrade-qemu-system-x86-coreamazon-linux-ami-2-upgrade-qemu-ui-cursesamazon-linux-ami-2-upgrade-qemu-ui-gtkamazon-linux-ami-2-upgrade-qemu-ui-sdlamazon-linux-ami-2-upgrade-qemu-useramazon-linux-ami-2-upgrade-qemu-user-binfmtamazon-linux-ami-2-upgrade-qemu-user-static

References

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