SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-3409

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.

MEDIUM 5.7EPSS 0.49%

Does this matter?

Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own.

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 3.1
5.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
EPSS
0.49% probability · 41th percentile
CISA KEV
Not listed
Weakness
CWE-119
Affected
qemu/qemu · redhat/enterprise linux · fedoraproject/fedora · debian/debian linux
Source
secalert@redhat.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.