GHSA-6q5r-wx7g-rq28
Record from GitHub Advisory Database · Published May 24, 2022
All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.
Risk scores
Timeline
- May 24, 2022 CVE Published
- Apr 9, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-6q5r-wx7g-rq28
vulnetix vdb fixes GHSA-6q5r-wx7g-rq28
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-6q5r-wx7g-rq28/fixes/registry"
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References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870 url
- https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html url
- https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html url
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E url
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE url
- https://security.gentoo.org/glsa/202003-52 url
- https://security.gentoo.org/glsa/202310-06 url
- https://security.netapp.com/advisory/ntap-20230216-0008 url
- https://usn.ubuntu.com/4217-2 url
- https://www.samba.org/samba/security/CVE-2019-14870.html url
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html url
- https://nvd.nist.gov/vuln/detail/CVE-2019-14870 advisory
- https://security.netapp.com/advisory/ntap-20191210-0002 url
- https://usn.ubuntu.com/4217-1 url
- https://www.synology.com/security/advisory/Synology_SA_19_40 url