Advisory Published

USN-6238-1: Samba vulnerabilities

First published: Wed Jul 19 2023(Updated: )

It was discovered that Samba incorrectly handled Winbind NTLM authentication responses. An attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2022-2127) Andreas Schneider discovered that Samba incorrectly enforced SMB2 packet signing. A remote attacker could possibly use this issue to obtain or modify sensitive information. This issue only affected Ubuntu 23.04. (CVE-2023-3347) Florent Saudel and Arnaud Gatignolof discovered that Samba incorrectly handled certain Spotlight requests. A remote attacker could possibly use this issue to cause Samba to consume resources, leading to a denial of service. (CVE-2023-34966, CVE-2023-34967) Ralph Boehme and Stefan Metzmacher discovered that Samba incorrectly handled paths returned by Spotlight requests. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2023-34968)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/samba<2:4.17.7+dfsg-1ubuntu1.1
2:4.17.7+dfsg-1ubuntu1.1
Ubuntu Ubuntu=23.04
All of
ubuntu/samba<2:4.16.8+dfsg-0ubuntu1.2
2:4.16.8+dfsg-0ubuntu1.2
Ubuntu Ubuntu=22.10
All of
ubuntu/samba<2:4.15.13+dfsg-0ubuntu1.2
2:4.15.13+dfsg-0ubuntu1.2
Ubuntu Ubuntu=22.04
All of
ubuntu/samba<2:4.15.13+dfsg-0ubuntu0.20.04.3
2:4.15.13+dfsg-0ubuntu0.20.04.3
Ubuntu Ubuntu=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for the Samba vulnerabilities?

    The vulnerability ID for the Samba vulnerabilities is USN-6238-1.

  • What is the impact of CVE-2022-2127?

    CVE-2022-2127 can cause Samba to crash, resulting in a denial of service.

  • Who discovered the Samba vulnerabilities?

    The Samba vulnerabilities were discovered by Andreas Schneider.

  • What is the remedy version for Samba on Ubuntu 23.04?

    The remedy version for Samba on Ubuntu 23.04 is 2:4.17.7+dfsg-1ubuntu1.1.

  • Where can I find more information about the Samba vulnerabilities?

    You can find more information about the Samba vulnerabilities at the following references: [CVE-2023-3347](https://ubuntu.com/security/CVE-2023-3347), [CVE-2023-34967](https://ubuntu.com/security/CVE-2023-34967), [CVE-2023-34968](https://ubuntu.com/security/CVE-2023-34968).

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