GHSA-rqmv-893j-49p8

GHSA-rqmv-893j-49p8 PUBLISHED CVSS 8.699999809265137 HIGH

Record from GitHub Advisory Database · Published May 24, 2022

An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.

Risk scores

CVSS 4.0

8.699999809265137

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Timeline

May 24, 2022 CVE Published
Apr 9, 2026 Distribution Patch
Apr 9, 2026 Security Advisory (3 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-rqmv-893j-49p8
vulnetix vdb fixes GHSA-rqmv-893j-49p8

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/GHSA-rqmv-893j-49p8/fixes/registry"

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References

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