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Debian: DSA-4135-1 Critical Samba Security Update for LDAP Issues

Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix. The Common Vulnerabilities and Exposures project identifies the following issues: . - ------------------------------------------------------------------------- Debian Security Advisory DSA-4135-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/security/ Salvatore Bonaccorso March 13, 2018 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : samba CVE ID : CVE-2018-1050 CVE-2018-1057 Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix. The Common Vulnerabilities and Exposures project identifies the following issues: CVE-2018-1050 It was discovered that Samba is prone to a denial of service attack when the RPC spoolss service is configured to be run as an external daemon. CVE-2018-1057 Bjoern Baumbach from Sernet discovered that on Samba 4 AD DC the LDAP server incorrectly validates permissions to modify passwords over LDAP allowing authenticated users to change any other users passwords, including administrative users. For the oldstable distribution (jessie), CVE-2018-1050 will be addressed in a later update. Unfortunately the changes required to fix CVE-2018-1057 for Debian oldstable are too invasive to be backported. Users using Samba as an AD-compatible domain controller are encouraged to apply the workaround described in the Samba wiki and upgrade to Debian stretch. For the stable distribution (stretch), these problems have been fixed in version 2:4.5.12+dfsg-2+deb9u2. We recommend that you upgrade your samba packages. For the detailed security status of samba please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/samba Further information about Debian Security Advisories, how to apply these updates to yoursystem and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. . A Samba security patch resolves security flaws CVE-2018-1050 and CVE-2018-1057 in Debian systems. Users are advised to update.. samba security, samba vulnerabilities, Debian advisory, ldap permissions, denial of service. . Severity: Critical. LinuxSecurity.com Team

Mar 13, 2018 •Critical Debian