CVE-2020-14364

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.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 11.64% Top 10%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org
Affected: n/a QEMU
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1869201 issue tracking third party advisory patch
https://www.openwall.com/lists/oss-security/2020/08/24/3 third party advisory mailing list
https://www.openwall.com/lists/oss-security/2020/08/24/2 third party advisory mailing list
https://www.debian.org/security/2020/dsa-4760 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/ vendor advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52WIRMZL6TZRYZ65N6OAYNNFHV62O2N/ vendor advisory
https://usn.ubuntu.com/4511-1/ third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20200924-0006/ third party advisory
https://security.gentoo.org/glsa/202009-14 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html mailing list broken link third party advisory vendor advisory
https://security.gentoo.org/glsa/202011-09 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-14364?
CVE-2020-14364 has been scored as a medium severity vulnerability.
How to fix CVE-2020-14364?
To fix CVE-2020-14364, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-14364 being actively exploited in the wild?
It is possible that CVE-2020-14364 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-14364?
CVE-2020-14364 affects n/a QEMU.
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