CVE-2019-14861

NameCVE-2019-14861
DescriptionAll 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
samba (PTS)stretch (security), stretch2:4.5.16+dfsg-1+deb9u2vulnerable
buster2:4.9.5+dfsg-5vulnerable
buster (security)2:4.9.5+dfsg-5+deb10u1vulnerable
bullseye2:4.11.5+dfsg-1fixed
sid2:4.12.5+dfsg-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sambasource(unstable)2:4.11.3+dfsg-1

Notes

[buster] - samba <no-dsa> (Minor issue)
[stretch] - samba <no-dsa> (Minor issue)
[jessie] - samba <no-dsa> (Minor issue)
https://www.samba.org/samba/security/CVE-2019-14861.html

Search for package or bug name: Reporting problems