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Ubuntu Security Notice USN-5174-1
Posted Dec 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5174-1 - Stefan Metzmacher discovered that Samba incorrectly handled SMB1 client connections. A remote attacker could possibly use this issue to downgrade connections to plaintext authentication. Andrew Bartlett discovered that Samba incorrectly mapping domain users to local users. An authenticated attacker could possibly use this issue to become root on domain members. Andrew Bartlett discovered that Samba did not properly check sensitive attributes. An authenticated attacker could possibly use this issue to escalate privileges. Various other issues were also addressed.

tags | advisory, remote, local, root
systems | linux, ubuntu
advisories | CVE-2016-2124, CVE-2020-25717, CVE-2020-25722, CVE-2021-3671
SHA-256 | 25c5c900f4302b24fc3b0236ad0320fa6c9153a96b6a27157cc077591a889f60

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