CVE-2020-14323

Publication date 29 October 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
samba	21.04 hirsute	Fixed 2:4.12.5+dfsg-3ubuntu4.1
	20.10 groovy	Fixed 2:4.12.5+dfsg-3ubuntu4.1
	20.04 LTS focal	Fixed 2:4.11.6+dfsg-0ubuntu1.6
	18.04 LTS bionic	Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
	16.04 LTS xenial	Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.32
	14.04 LTS trusty	Fixed 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11 Ubuntu Pro

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Notes

mdeslaur

This is GHSL-2020-134

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H