CVE-2019-14907

medium

Description

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).

References

https://www.samba.org/samba/security/CVE-2019-14907.html

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907

https://security.netapp.com/advisory/ntap-20200122-0001/

https://www.synology.com/security/advisory/Synology_SA_20_01

https://usn.ubuntu.com/4244-1/

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/

https://lists.fedoraproject.org/archives/list/[email protected]/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/

https://security.gentoo.org/glsa/202003-52

https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html

Details

Source: MITRE

Published: 2020-01-21

Updated: 2021-05-29

Type: CWE-125

Risk Information

CVSS v2

Base Score: 2.6

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

Impact Score: 2.9

Exploitability Score: 4.9

Severity: LOW

CVSS v3

Base Score: 6.5

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

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM