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Ubuntu: USN-3976-4: Samba vulnerability

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Ubuntu: USN-3976-4: Samba vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/27/2019
Created
05/30/2019
Added
05/28/2019
Modified
08/05/2020

Description

USN-3976-1 fixed a vulnerability in Samba. The update introduced a regression causing Samba to occasionally crash. This update fixes the problem.

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.

Solution(s)

  • ubuntu-upgrade-samba

References

  • USN-3976-1
  • USN-3976-4

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