CVE-2020-14364
Published: August 31, 2023Last modified: August 31, 2023
Description
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 score breakdown
| Parameter | Value |
|---|---|
| Base score | 5 |
| Attack Vector | LOCAL |
| Attack complexity | HIGH |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | LOW |
| Integrity impact | LOW |
| Availability impact | LOW |
| Vector | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | qemu | Not affected (7.1.0-r4) |
| Stream | qemu | Not affected (8.0.4-r0) |
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/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/M52WIRMZL6TZRYZ65N6OAYNNFHV62O2N/
- https://security.gentoo.org/glsa/202009-14
- https://security.gentoo.org/glsa/202011-09
- https://security.netapp.com/advisory/ntap-20200924-0006/
- https://usn.ubuntu.com/4511-1/
- https://www.debian.org/security/2020/dsa-4760
- https://www.openwall.com/lists/oss-security/2020/08/24/2
- https://www.openwall.com/lists/oss-security/2020/08/24/3