CVE-2020-14394 - log back

CVE-2020-14394 edited at 29 Dec 2020 11:35:50
Severity
- Medium
+ Low
CVE-2020-14394 edited at 21 Dec 2020 12:50:45
Severity
- Unknown
+ Medium
Remote
- Unknown
+ Local
Type
- Unknown
+ Denial of service
Description
+ An infinite loop issue was found in the USB xHCI controller emulation of QEMU. Specifically, function xhci_ring_chain_length() in hw/usb/hcd-xhci.c may get stuck while fetching TRBs from guest memory, since the exit conditions of the loop depend on values that are fully controlled by guest. A privileged guest user may exploit this issue to hang the QEMU process on the host, resulting in a denial of service.
References
+ https://bugzilla.redhat.com/show_bug.cgi?id=1908004
CVE-2020-14394 created at 21 Dec 2020 12:49:31
Severity
+ Unknown
Remote
+ Unknown
Type
+ Unknown
Description
References
Notes