CVE-2020-14364
An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0.
Does this matter?
Lower severity and a low EPSS score (5.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.0 MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
- EPSS
- 5.40% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-787
- Affected
- qemu/qemu · redhat/openstack · redhat/enterprise linux · fedoraproject/fedora · debian/debian linux · opensuse/leap · canonical/ubuntu linux
- Source
- secalert@redhat.com
EPSS 5.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.htmlBroken Link, Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1869201Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing List, Third Party Advisory
- 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://security.gentoo.org/glsa/202009-14Third Party Advisory
- https://security.gentoo.org/glsa/202011-09Third 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-4760Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/24/2Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/24/3Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.htmlBroken Link, Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1869201Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing List, Third Party Advisory
- 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://security.gentoo.org/glsa/202009-14Third Party Advisory
- https://security.gentoo.org/glsa/202011-09Third 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-4760Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/24/2Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/24/3Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.