Vulnerability · Published Nov 7, 2022 · Assigned by redhat
CVE-2022-3872
High 8.6
In plain English
A high-severity security flaw in QEMU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Severity (CVSS 3.1)8.6High
Exploit odds (30 days)1.1%top 34.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | qemu | no fix listed | DEBIAN-CVE-2022-3872 |
| Debian:13 | qemu | no fix listed | DEBIAN-CVE-2022-3872 |
| Debian:14 | qemu | no fix listed | DEBIAN-CVE-2022-3872 |
| Ubuntu:22.04:LTS | qemu | no fix listed | UBUNTU-CVE-2022-3872 |
| Ubuntu:24.04:LTS | qemu | no fix listed | UBUNTU-CVE-2022-3872 |
| Ubuntu:25.10 | qemu | no fix listed | UBUNTU-CVE-2022-3872 |
| Ubuntu:26.04:LTS | qemu | no fix listed | UBUNTU-CVE-2022-3872 |
| Ubuntu:26.10 | qemu | no fix listed | UBUNTU-CVE-2022-3872 |
| Ubuntu:26.04:LTS | qemu-hwe | no fix listed | UBUNTU-CVE-2022-3872 |
| Ubuntu:26.10 | qemu-hwe | no fix listed | UBUNTU-CVE-2022-3872 |
Affected products (as reported)
Weakness: CWE-193 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H