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USN-6425-2

USN-6425-2 · samba regression

This page contains facts from public vulnerability sources. Check the original advisory before updating.

USN-6425-1 fixed vulnerabilities in Samba. Due to a build issue on Ubuntu 20.04 LTS, the update introduced regressions in macro handling and possibly other functionality. This update fixes the problem. We apologize for the inconvenience. 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)

Fix available

Published
Updated

Stack: system

Affected products and versions

  • samba Ubuntu:20.04:LTS

    Versions
    • 2:4.10.7+dfsg-0ubuntu2
    • 2:4.10.7+dfsg-0ubuntu3
    • 2:4.11.1+dfsg-3ubuntu1
    • 2:4.11.1+dfsg-3ubuntu2
    • 2:4.11.1+dfsg-3ubuntu4
    • 2:4.11.5+dfsg-1ubuntu1
    • 2:4.11.5+dfsg-1ubuntu2
    • 2:4.11.6+dfsg-0ubuntu1
    • 2:4.11.6+dfsg-0ubuntu1.1
    • 2:4.11.6+dfsg-0ubuntu1.2
    • 2:4.11.6+dfsg-0ubuntu1.3
    • 2:4.11.6+dfsg-0ubuntu1.4
    • 2:4.11.6+dfsg-0ubuntu1.5
    • 2:4.11.6+dfsg-0ubuntu1.6
    • 2:4.11.6+dfsg-0ubuntu1.8
    • 2:4.11.6+dfsg-0ubuntu1.9
    • 2:4.11.6+dfsg-0ubuntu1.10
    • 2:4.13.14+dfsg-0ubuntu0.20.04.1
    • 2:4.13.14+dfsg-0ubuntu0.20.04.2
    • 2:4.13.14+dfsg-0ubuntu0.20.04.3
    • 2:4.13.14+dfsg-0ubuntu0.20.04.4
    • 2:4.13.17~dfsg-0ubuntu0.21.04.1
    • 2:4.13.17~dfsg-0ubuntu0.21.04.2
    • 2:4.13.17~dfsg-0ubuntu1.20.04.1
    • 2:4.13.17~dfsg-0ubuntu1.20.04.2
    • 2:4.13.17~dfsg-0ubuntu1.20.04.4
    • 2:4.13.17~dfsg-0ubuntu1.20.04.5
    • 2:4.15.13+dfsg-0ubuntu0.20.04.1
    • 2:4.15.13+dfsg-0ubuntu0.20.04.2
    • 2:4.15.13+dfsg-0ubuntu0.20.04.3
    • 2:4.15.13+dfsg-0ubuntu0.20.04.4
    • 2:4.15.13+dfsg-0ubuntu0.20.04.5
    • 2:4.15.13+dfsg-0ubuntu0.20.04.6
    Affected ranges
    • ECOSYSTEM: < 2:4.15.13+dfsg-0ubuntu0.20.04.7

    Update to 2:4.15.13+dfsg-0ubuntu0.20.04.7

Original sources

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