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Ubuntu Security Notice USN-5822-2

Posted Jan 27, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5822-2 - USN-5822-1 fixed vulnerabilities in Samba. The update for Ubuntu 20.04 LTS introduced regressions in certain environments. Pending investigation of these regressions, this update temporarily reverts the security fixes. It was discovered that Samba incorrectly handled the bad password count logic. It was discovered that Samba supported weak RC4/HMAC-MD5 in NetLogon Secure Channel. Greg Hudson discovered that Samba incorrectly handled PAC parsing. Joseph Sutton discovered that Samba could be forced to issue rc4-hmac encrypted Kerberos tickets.

tags | advisory, vulnerability

systems | linux, ubuntu

advisories | CVE-2021-20251, CVE-2022-3437, CVE-2022-38023, CVE-2022-42898, CVE-2022-45141

SHA-256 | f718e90d7add248ca99e3552b0f274b6f861ca5ceefde619cf3bde7fa83d130a

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