VDB

CVE-2020-14394

CVE-2020-14394 PUBLISHED

Reported by redhat · Published August 17, 2022

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
qemuUbuntu:22.04:LTS1:6.2+dfsg-2ubuntu6.16

Affected products

VendorProductVersions
n/aQEMUQEMU 6.1.50
n/aQEMU6.1.50

Timeline

  • Jan 11, 2021 CVE Published
  • Aug 18, 2022 EPSS Score (30 in total, the first dated here)
  • Oct 5, 2023 PoC Published (36 in total, the first dated here)
  • Mar 6, 2026 Distribution Patch (4 in total, the first dated here)
  • Mar 6, 2026 Security Advisory (6 in total, the first dated here)
  • Sep 5, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2020-14394
vulnetix vdb fixes CVE-2020-14394

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2020-14394/fixes/registry"

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References

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