CVE-2020-25723

low
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.

References

http://www.openwall.com/lists/oss-security/2020/12/22/1

https://bugzilla.redhat.com/show_bug.cgi?id=1898579

https://security.netapp.com/advisory/ntap-20201218-0004/

Details

Source: MITRE

Published: 2020-12-02

Updated: 2020-12-28

Type: CWE-617

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 3.2

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Impact Score: 1.4

Exploitability Score: 1.5

Severity: LOW

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to 5.1.1 (inclusive)

Tenable Plugins

View all (37 total)

IDNameProductFamilySeverity
155325Oracle Linux 8 : virt:ol / and / virt-devel:rhel (ELSA-2021-1762)NessusOracle Linux Local Security Checks
medium
151714openSUSE 15 Security Update : qemu (openSUSE-SU-2021:1942-1)NessusSuSE Local Security Checks
medium
151619openSUSE 15 Security Update : qemu (openSUSE-SU-2021:1043-1)NessusSuSE Local Security Checks
medium
151383EulerOS Virtualization 3.0.2.2 : qemu-kvm (EulerOS-SA-2021-2166)NessusHuawei Local Security Checks
critical
150965Amazon Linux 2 : qemu (ALAS-2021-1671)NessusAmazon Linux Local Security Checks
medium
150736SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:1942-1)NessusSuSE Local Security Checks
medium
150733SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1947-1)NessusSuSE Local Security Checks
medium
150537SUSE SLES11 Security Update : kvm (SUSE-SU-2021:14704-1)NessusSuSE Local Security Checks
high
150513SUSE SLES11 Security Update : xen (SUSE-SU-2020:14557-1)NessusSuSE Local Security Checks
high
150468SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1918-1)NessusSuSE Local Security Checks
high
150414SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:1893-1)NessusSuSE Local Security Checks
high
150399SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1894-1)NessusSuSE Local Security Checks
high
150395SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1895-1)NessusSuSE Local Security Checks
high
150220SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1837-1)NessusSuSE Local Security Checks
medium
150203SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1829-1)NessusSuSE Local Security Checks
medium
149772CentOS 8 : virt:rhel and virt-devel:rhel (CESA-2021:1762)NessusCentOS Local Security Checks
medium
149669RHEL 8 : virt:rhel and virt-devel:rhel (RHSA-2021:1762)NessusRed Hat Local Security Checks
medium
149640openSUSE Security Update : qemu (openSUSE-2021-600)NessusSuSE Local Security Checks
medium
148966SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1305-1)NessusSuSE Local Security Checks
high
148761SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1241-1)NessusSuSE Local Security Checks
high
148758SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1240-1)NessusSuSE Local Security Checks
high
148757SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1244-1)NessusSuSE Local Security Checks
high
148755SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:1243-1)NessusSuSE Local Security Checks
medium
148752SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1245-1)NessusSuSE Local Security Checks
high
148751SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1242-1)NessusSuSE Local Security Checks
high
147700EulerOS Virtualization 2.9.0 : qemu (EulerOS-SA-2021-1667)NessusHuawei Local Security Checks
medium
147523EulerOS Virtualization 2.9.1 : qemu (EulerOS-SA-2021-1632)NessusHuawei Local Security Checks
medium
147490EulerOS Virtualization 3.0.6.6 : qemu (EulerOS-SA-2021-1455)NessusHuawei Local Security Checks
medium
147210RHEL 8 : virt:rhel and virt-devel:rhel (RHSA-2021:0771)NessusRed Hat Local Security Checks
low
147128EulerOS Virtualization for ARM 64 3.0.6.0 : qemu-kvm (EulerOS-SA-2021-1527)NessusHuawei Local Security Checks
medium
146793RHEL 8 : virt:8.2 and virt-devel:8.2 (RHSA-2021:0648)NessusRed Hat Local Security Checks
low
146269Oracle Linux 7 : qemu (ELSA-2021-9034)NessusOracle Linux Local Security Checks
medium
146243EulerOS 2.0 SP9 : qemu (EulerOS-SA-2021-1275)NessusHuawei Local Security Checks
medium
146222EulerOS 2.0 SP9 : qemu (EulerOS-SA-2021-1256)NessusHuawei Local Security Checks
medium
144726EulerOS Virtualization for ARM 64 3.0.2.0 : qemu-kvm (EulerOS-SA-2021-1046)NessusHuawei Local Security Checks
high
143376Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : QEMU vulnerabilities (USN-4650-1)NessusUbuntu Local Security Checks
medium
143305Debian DLA-2469-1 : qemu security updateNessusDebian Local Security Checks
medium