CVE-2019-14907

Publication date 21 January 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).

Status

Show unmaintained releases

Package	Ubuntu Release	Status
samba	24.10 oracular	Fixed 2:4.11.5+dfsg-1ubuntu1
	24.04 LTS noble	Fixed 2:4.11.5+dfsg-1ubuntu1
	23.10 mantic	Fixed 2:4.11.5+dfsg-1ubuntu1
	23.04 lunar	Fixed 2:4.11.5+dfsg-1ubuntu1
	22.10 kinetic	Fixed 2:4.11.5+dfsg-1ubuntu1
	22.04 LTS jammy	Fixed 2:4.11.5+dfsg-1ubuntu1
	21.10 impish	Fixed 2:4.11.5+dfsg-1ubuntu1
	21.04 hirsute	Fixed 2:4.11.5+dfsg-1ubuntu1
	20.10 groovy	Fixed 2:4.11.5+dfsg-1ubuntu1
	20.04 LTS focal	Fixed 2:4.11.5+dfsg-1ubuntu1
	19.10 eoan	Fixed 2:4.10.7+dfsg-0ubuntu2.4
	19.04 disco	Fixed 2:4.10.0+dfsg-0ubuntu2.8
	18.04 LTS bionic	Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.15
	16.04 LTS xenial	Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.25
	14.04 LTS trusty	Ignored end of ESM support, was needed

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVE-2019-14907

Cvss 3 Severity Score

Status

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references