CVE-2021-3409
5.7
MEDIUM
CVSS 3.1
EPSS 0.30%
Description
The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.
How to fix CVE-2021-3409
To remediate CVE-2021-3409, upgrade the affected package to a fixed version below.
- —upgrade to 1:5.2+dfsg-10 or later
Is CVE-2021-3409 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:5.2+dfsg-10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L |