Ubuntu alert USN-4930-1 (samba)
| From: | Marc Deslauriers <marc.deslauriers@canonical.com> | |
| To: | "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> | |
| Subject: | [USN-4930-1] Samba vulnerability | |
| Date: | Thu, 29 Apr 2021 13:49:14 -0400 | |
| Message-ID: | <d8c4145c-ac92-a011-3afa-a57843e1c3e4@canonical.com> |
========================================================================== Ubuntu Security Notice USN-4930-1 April 29, 2021 samba vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Samba would allow unintended access to files over the network. Software Description: - samba: SMB/CIFS file, print, and login server for Unix Details: Peter Eriksson discovered that Samba incorrectly handled certain negative idmap cache entries. This issue could result in certain users gaining unauthorized access to files, contrary to expected behaviour. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: samba 2:4.13.3+dfsg-1ubuntu2.1 Ubuntu 20.10: samba 2:4.12.5+dfsg-3ubuntu4.3 Ubuntu 20.04 LTS: samba 2:4.11.6+dfsg-0ubuntu1.8 Ubuntu 18.04 LTS: samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.23 Ubuntu 16.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.16.04.34 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4930-1 CVE-2021-20254 Package Information: https://launchpad.net/ubuntu/+source/samba/2:4.13.3+dfsg-... https://launchpad.net/ubuntu/+source/samba/2:4.12.5+dfsg-... https://launchpad.net/ubuntu/+source/samba/2:4.11.6+dfsg-... https://launchpad.net/ubuntu/+source/samba/2:4.7.6+dfsg~u... https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-... -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security...