CVE-2020-14364

moderate-risk

Published 2020-08-31

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.

Do I need to act?

13.9% chance of exploitation in next 30 days

EPSS score — higher than 86% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.0/10 Medium

LOCAL / HIGH complexity

Affected Products (15)

Qemu

Openstack

Enterprise Linux

Fedora

Debian Linux

Leap

Ubuntu Linux

Affected Vendors

Debian Redhat Canonical Fedoraproject Qemu Opensuse

References (24)

Broken Link http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1869201

Mailing List https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/202009-14

Third Party Advisory https://security.gentoo.org/glsa/202011-09

Third Party Advisory https://security.netapp.com/advisory/ntap-20200924-0006/

Third Party Advisory https://usn.ubuntu.com/4511-1/

Third Party Advisory https://www.debian.org/security/2020/dsa-4760

Mailing List https://www.openwall.com/lists/oss-security/2020/08/24/2

Mailing List https://www.openwall.com/lists/oss-security/2020/08/24/3

Broken Link http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1869201

Mailing List https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/202009-14

Third Party Advisory https://security.gentoo.org/glsa/202011-09

Third Party Advisory https://security.netapp.com/advisory/ntap-20200924-0006/

and 4 more references

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moderate-risk

Severity 13/34 · Low

Exploitability 12/34 · Low

Exposure 18/34 · Moderate