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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14364
Reference (s):
- https://security.netapp.com/advisory/ntap-20200924-0006/
- DEBIAN:DSA-4760
- URL: https://www.debian.org/security/2020/dsa-4760
- FEDORA:FEDORA-2020-3689b67b53
- URL: https://lists.fedoraproject.org/archives/list/[email protected]/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/