Vulnerability · Published Aug 17, 2022 · Assigned by redhat
CVE-2020-14394
Low 3.2
In plain English
A low-severity infinite loop in QEMU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)3.2Low
Exploit odds (30 days)0.4%top 66.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | qemu | 1:7.1+dfsg-1 | DEBIAN-CVE-2020-14394 |
| Debian:13 | qemu | 1:7.1+dfsg-1 | DEBIAN-CVE-2020-14394 |
| Debian:14 | qemu | 1:7.1+dfsg-1 | DEBIAN-CVE-2020-14394 |
| Ubuntu:22.04:LTS | qemu | 1:6.2+dfsg-2ubuntu6.16 | USN-6567-1 |
| Ubuntu:22.04:LTS | qemu | 1:6.2+dfsg-2ubuntu6.16 | UBUNTU-CVE-2020-14394 |
Affected products (as reported)
Weakness: CWE-835