CVE-2020-27840

Published: 24 March 2021

An anonymous attacker can crash the Samba AD DC LDAP server by sending easily crafted DNs as part of a bind request. More serious heap corruption is likely also possible.

Priority

High

CVSS 3 base score: 7.5

Status

Package Release Status
ldb
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo)
Released (2:2.2.0-3ubuntu2)
Ubuntu 20.10 (Groovy Gorilla)
Released (2:2.1.4-2ubuntu0.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (2:2.0.10-0ubuntu0.20.04.3)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2:1.2.3-1ubuntu0.2)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2:1.1.24-1ubuntu3.2)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (1:1.1.24-0ubuntu0.14.04.2+esm1)
Patches:
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16460 (master)
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16462 (4.13)
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16463 (4.12)
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16464 (4.11)
samba
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(code not compiled)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(code not compiled)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(code not compiled)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not compiled)
Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable
(code not compiled)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(code not compiled)
Patches:
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16460 (master)
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16462 (4.13)
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16463 (4.12)
Upstream: https://bugzilla.samba.org/attachment.cgi?id=16464 (4.11)