CVE-2021-3409 Information

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 Vector

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

Reference

https://www.openwall.com/lists/oss-security/2021/03/09/1 https://bugzilla.redhat.com/show_bug.cgi?id=1928146 https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html https://security.netapp.com/advisory/ntap-20210507-0001/

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

LOW

Base Severity

5.7