GHSA-gh3w-mmv8-hhv4

GHSA-gh3w-mmv8-hhv4 PUBLISHED CVSS 7.800000190734863 HIGH

Record from GitHub Advisory Database · Published May 13, 2022

The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a "cache stuffing" issue and MS-DFS referrals.

Risk scores

CVSS 3.1

7.800000190734863

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Timeline

May 13, 2022 CVE Published
Apr 30, 2026 Distribution Patch
Apr 30, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-gh3w-mmv8-hhv4
vulnetix vdb fixes GHSA-gh3w-mmv8-hhv4

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-gh3w-mmv8-hhv4/fixes/registry"

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References

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