CVE-2021-3409

MediumCVSS 5.7/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.7/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
n/a	QEMU	up to (including) 5.2.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1928146Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00009.htmlThird Party Advisory
https://security.gentoo.org/glsa/202208-27Third Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0001/Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/03/09/1Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1928146Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00009.htmlThird Party Advisory
https://security.gentoo.org/glsa/202208-27Third Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0001/Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/03/09/1Mailing List, Patch, Third Party Advisory

Timeline

Published: Mar 23, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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