DEBIAN-CVE-2021-3409

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2021-3409
Published: 23 Mar 2021, 21:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
low
23/100
CVSS Score
5.7 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Mar 2021, 21:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

Affected Systems

  • debian•qemu

    < 1:5.2+dfsg-10 | < 1:5.2+dfsg-10 | < 1:5.2+dfsg-10 | < 1:5.2+dfsg-10

References (1)