CVE-2019-14861
lowpriority · track · 22OT risk · elevatedEPSS 0.023 · 83 %ileDEEURUUSEPSS · scored 2026-10-28
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 (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (35)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-2051Samba: Mehrere SchwachstellenDeutsch2019-12-09csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Samba ausnutzen, um einen Denial of Service Angriff durchzuführen oder Sicherheitsvorkehrungen zu umgehen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (48)
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.htmlcnnvd
- https://access.redhat.com/security/cve/cve-2019-14861cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861cnnvd
- https://lists.debian.org/debian-lts-announce/2021/05/msg00023.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-14861cnnvd
- https://packetstormsecurity.com/files/155612/Ubuntu-Security-Notice-USN-4217-1.htmlcnnvd
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