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Gentoo Linux: CVE-2021-4145: QEMU: Multiple Vulnerabilities

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Gentoo Linux: CVE-2021-4145: QEMU: Multiple Vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
01/25/2022
Created
08/29/2022
Added
08/16/2022
Modified
08/16/2022

Description

A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.

Solution(s)

  • gentoo-linux-upgrade-app-emulation-qemu

References

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