FreeBSD : samba -- Multiple Vulnerabilities (1f6d97da-8f72-11eb-b3f1-005056a311d1)

high Nessus Plugin ID 148207


The remote FreeBSD host is missing one or more security-related updates.


The Samba Team reports :

- CVE-2020-27840: 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.

- CVE-2021-20277: User-controlled LDAP filter strings against the AD DC LDAP server may crash the LDAP server.


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 148207

File Name: freebsd_pkg_1f6d97da8f7211ebb3f1005056a311d1.nasl

Version: 1.4

Type: local

Published: 3/29/2021

Updated: 6/3/2021

Risk Information

CVSS Score Source: CVE-2021-20277


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:samba411, p-cpe:/a:freebsd:freebsd:samba412, p-cpe:/a:freebsd:freebsd:samba413, p-cpe:/a:freebsd:freebsd:samba414, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 3/28/2021

Vulnerability Publication Date: 3/24/2021

Reference Information

CVE: CVE-2020-27840, CVE-2021-20277

IAVA: 2021-A-0140-S