========================================================================== Ubuntu Security Notice USN-4167-2 October 29, 2019
samba vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: Several security issues were fixed in Samba. Software Description: - samba: SMB/CIFS file, print, and login server for Unix Details: USN-4167-1 fixed several vulnerabilities in Samba. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: Michael Hanselmann discovered that the Samba client code incorrectly handled path separators. If a user were tricked into connecting to a malicious server, a remote attacker could use this issue to cause the client to access local pathnames instead of network pathnames. (CVE-2019-10218) Adam Xu discovered that Samba incorrectly handled the dirsync LDAP control. A remote attacker with "get changes" permissions could possibly use this issue to cause Samba to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 ESM. (CVE-2019-14847) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: libsmbclient 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3 samba 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3 Ubuntu 12.04 ESM: libsmbclient 2:3.6.25-0ubuntu0.12.04.19 samba 2:3.6.25-0ubuntu0.12.04.19 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4167-2 https://usn.ubuntu.com/4167-1 CVE-2019-10218, CVE-2019-14847
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