CVSS 3.1
5.0 mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:LCVE-2020-14364
Medium (5.0). EPSS 5.4% chance of exploitation in the next 30 days.
An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.
Severity
- EPSS
- 5.4% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-125, CWE-787
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- debian:debian_linux
- fedoraproject:fedora
- opensuse:leap
- qemu:qemu
- redhat:enterprise_linux
- redhat:openstack
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1869201
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52WIRMZL6TZRYZ65N6OAYNNFHV62O2N/