- Vulnerability/
- USN-6425-3
USN-6425-3: Samba vulnerabilities
First published: Tue Oct 17 2023(Updated: )
USN-6425-1 fixed vulnerabilities in Samba. This update provides the corresponding updates for Ubuntu 23.10. Original advisory details: Sri Nagasubramanian discovered that the Samba acl_xattr VFS module incorrectly handled read-only files. When Samba is configured to ignore system ACLs, a remote attacker could possibly use this issue to truncate read-only files. (CVE-2023-4091) Andrew Bartlett discovered that Samba incorrectly handled the DirSync control. A remote attacker with an RODC DC account could possibly use this issue to obtain all domain secrets. (CVE-2023-4154) Andrew Bartlett discovered that Samba incorrectly handled the rpcecho development server. A remote attacker could possibly use this issue to cause Samba to stop responding, resulting in a denial of service. (CVE-2023-42669) Kirin van der Veer discovered that Samba incorrectly handled certain RPC service listeners. A remote attacker could possibly use this issue to cause Samba to start multiple incompatible RPC listeners, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-42670)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/samba | <2:4.18.6+dfsg-1ubuntu2.1 | 2:4.18.6+dfsg-1ubuntu2.1 |
| =23.10 |
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Reference Links
- https://ubuntu.com/security/CVE-2023-42669
- https://ubuntu.com/security/CVE-2023-4091
- https://ubuntu.com/security/CVE-2023-4154
- https://ubuntu.com/security/CVE-2023-42670
- https://ubuntu.com/security/notices/USN-6425-1
- https://launchpad.net/ubuntu/+source/samba/2:4.18.6+dfsg-1ubuntu2.1
- https://ubuntu.com/security/notices/USN-6425-3 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is USN-6425-3.
What is the title of the vulnerability?
The title of the vulnerability is 'Samba vulnerabilities'.
What is the affected software?
The affected software is Samba version 2:4.18.6+dfsg-1ubuntu2.1 on Ubuntu 23.10.
Are there any fixes available?
Yes, the update version 2:4.18.6+dfsg-1ubuntu2.1 provides the corresponding fixes.
Where can I find more information?
You can find more information about the vulnerability at the following references: [Link 1](https://ubuntu.com/security/CVE-2023-42669), [Link 2](https://ubuntu.com/security/CVE-2023-4091), [Link 3](https://ubuntu.com/security/CVE-2023-4154).
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