CVE-2020-14394

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

• CWE-835
• CWE-835

• https://bugzilla.redhat.com/show_bug.cgi?id=1908004Exploit, Issue Tracking, Third Party Advisory
• https://gitlab.com/qemu-project/qemu/-/issues/646Exploit, Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
• https://bugzilla.redhat.com/show_bug.cgi?id=1908004Exploit, Issue Tracking, Third Party Advisory
• https://gitlab.com/qemu-project/qemu/-/issues/646Exploit, Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/

Published

Aug 17, 2022

Last Modified

Jun 17, 2026

Status

Modified

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