VDB
CVE-2021-20203
CVE-2021-20203
PUBLISHED
CVSS 3.200000047683716 LOW
An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
EPSS 0.59% · 48.2th percentile
Risk Scores
CVSS 3.1
3.200000047683716
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
EPSS Score
0.59%
48.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | qemu | 0, 1:6.0+dfsg-2expubuntu1, 1:6.0+dfsg-2expubuntu2 |
| Ubuntu:Pro:16.04:LTS | qemu | 1:2.5+dfsg-5ubuntu10.7, 0, 1:2.3+dfsg-5ubuntu9 |
| Ubuntu:Pro:14.04:LTS | qemu | 2.0.0+dfsg-2ubuntu1.39, 0, 1.5.0+dfsg-3ubuntu5 |
| Ubuntu:20.04:LTS | qemu | 1:4.2-3ubuntu6.10, 1:4.0+dfsg-0ubuntu9, 1:4.0+dfsg-0ubuntu10 |
| Ubuntu:18.04:LTS | qemu | 1:2.11+dfsg-1ubuntu4, 0, 1:2.10+dfsg-0ubuntu3 |
Timeline
- Feb 19, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 24, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Dec 31, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 5, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 7, 2022 EPSS Score
- Sep 12, 2022 EPSS Score
- Nov 15, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-20203 advisory
- https://ubuntu.com/security/notices/USN-5307-1 advisory
- https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg07935.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-20203 third-party-advisory