CVE-2020-14323: 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

Medium severity · published Oct 29, 2020

CVE-2020-14323

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

5.5

CVSS

0.6%

EPSS

On KEV

Description

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.

CVSS vector

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

Attack vector

Local

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.6% · higher than 50% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Debian Linux · Debian

9.0 · source: NVD

Fedora · Fedoraproject

32; 33 · source: NVD

Leap · Opensuse

15.1; 15.2 · source: NVD

Samba · Samba

3.6.0 before 4.11.15; 4.12.0 before 4.12.9; 4.13.0 before 4.13.1 · source: NVD

Affected product

Debian Linux

Debian

All Debian Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-14323

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-14323

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.html

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.html

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=1891685

Mailing List

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

lists.debian.org

https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/