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USN-3976-3

USN-3976-3 · samba regression

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

USN-3976-1 fixed a vulnerability in Samba. The update introduced a regression causing Samba to occasionally crash. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked S4U2Self packets. In certain environments, a remote attacker could possibly use this issue to escalate privileges.

Fix available

Published
Updated

Stack: system

Affected products and versions

  • samba Ubuntu:16.04:LTS

    Versions
    • 2:4.1.17+dfsg-4ubuntu2
    • 2:4.1.20+dfsg-1ubuntu1
    • 2:4.1.20+dfsg-1ubuntu2
    • 2:4.1.20+dfsg-1ubuntu3
    • 2:4.1.20+dfsg-1ubuntu5
    • 2:4.3.3+dfsg-1ubuntu1
    • 2:4.3.3+dfsg-1ubuntu2
    • 2:4.3.3+dfsg-1ubuntu3
    • 2:4.3.6+dfsg-1ubuntu1
    • 2:4.3.8+dfsg-0ubuntu1
    • 2:4.3.9+dfsg-0ubuntu0.16.04.1
    • 2:4.3.9+dfsg-0ubuntu0.16.04.2
    • 2:4.3.9+dfsg-0ubuntu0.16.04.3
    • 2:4.3.11+dfsg-0ubuntu0.16.04.1
    • 2:4.3.11+dfsg-0ubuntu0.16.04.3
    • 2:4.3.11+dfsg-0ubuntu0.16.04.5
    • 2:4.3.11+dfsg-0ubuntu0.16.04.6
    • 2:4.3.11+dfsg-0ubuntu0.16.04.7
    • 2:4.3.11+dfsg-0ubuntu0.16.04.8
    • 2:4.3.11+dfsg-0ubuntu0.16.04.9
    • 2:4.3.11+dfsg-0ubuntu0.16.04.10
    • 2:4.3.11+dfsg-0ubuntu0.16.04.11
    • 2:4.3.11+dfsg-0ubuntu0.16.04.12
    • 2:4.3.11+dfsg-0ubuntu0.16.04.13
    • 2:4.3.11+dfsg-0ubuntu0.16.04.15
    • 2:4.3.11+dfsg-0ubuntu0.16.04.16
    • 2:4.3.11+dfsg-0ubuntu0.16.04.17
    • 2:4.3.11+dfsg-0ubuntu0.16.04.18
    • 2:4.3.11+dfsg-0ubuntu0.16.04.19
    • 2:4.3.11+dfsg-0ubuntu0.16.04.20
    Affected ranges
    • ECOSYSTEM: < 2:4.3.11+dfsg-0ubuntu0.16.04.21

    Update to 2:4.3.11+dfsg-0ubuntu0.16.04.21

  • samba Ubuntu:18.04:LTS

    Versions
    • 2:4.6.7+dfsg-1ubuntu3
    • 2:4.7.1+dfsg-1ubuntu1
    • 2:4.7.3+dfsg-1ubuntu1
    • 2:4.7.4+dfsg-1ubuntu1
    • 2:4.7.6+dfsg~ubuntu-0ubuntu1
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.2
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.4
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.5
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.6
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.7
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.9
    • 2:4.7.6+dfsg~ubuntu-0ubuntu2.10
    Affected ranges
    • ECOSYSTEM: < 2:4.7.6+dfsg~ubuntu-0ubuntu2.11

    Update to 2:4.7.6+dfsg~ubuntu-0ubuntu2.11

Original sources

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