CVE-2020-10745

HIGH

Samba < 4.10.17, < 4.11.11, < 4.12.4 - Denial of Service via NetBios over TCP/IP

Title source: llm

Description

A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios over TCP/IP. This flaw allows a remote attacker could to cause the Samba server to consume excessive CPU use, resulting in a denial of service. This highest threat from this vulnerability is to system availability.

References (8)

Core 8

Core References

Issue Tracking x_refsource_misc

https://bugzilla.redhat.com/show_bug.cgi?id=1849491%3B

Vendor Advisory x_refsource_misc

https://www.samba.org/samba/security/CVE-2020-10745.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202007-15

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html

Scores

CVSS v3 7.5

EPSS 0.1966

EPSS Percentile 95.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-400

Status published

Products (5)

debian/debian_linux 9.0

fedoraproject/fedora 31

opensuse/leap 15.1

opensuse/leap 15.2

samba/samba 4.0.0 - 4.10.17

Published Jul 07, 2020

Tracked Since Feb 18, 2026