drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Samba (Aktualisierung)
Name: |
Mehrere Probleme in Samba (Aktualisierung) |
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ID: |
USN-2855-2 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 15.10 |
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Datum: |
Di, 16. Februar 2016, 18:43 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5252
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5296
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8467
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5330
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3223
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5299
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7540 |
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Applikationen: |
Samba |
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Update von: |
Mehrere Probleme in Samba |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2855-2 February 16, 2016
samba regression ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS
Summary:
USN-2855-1 introduced a regression in Samba.
Software Description: - samba: SMB/CIFS file, print, and login server for Unix
Details:
USN-2855-1 fixed vulnerabilities in Samba. The upstream fix for CVE-2015-5252 introduced a regression in certain specific environments. This update fixes the problem.
Original advisory details:
Thilo Uttendorfer discovered that the Samba LDAP server incorrectly handled certain packets. A remote attacker could use this issue to cause the LDAP server to stop responding, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-3223) Jan Kasprzak discovered that Samba incorrectly handled certain symlinks. A remote attacker could use this issue to access files outside the exported share path. (CVE-2015-5252) Stefan Metzmacher discovered that Samba did not enforce signing when creating encrypted connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information. (CVE-2015-5296) It was discovered that Samba incorrectly performed access control when using the VFS shadow_copy2 module. A remote attacker could use this issue to access snapshots, contrary to intended permissions. (CVE-2015-5299) Douglas Bagnall discovered that Samba incorrectly handled certain string lengths. A remote attacker could use this issue to possibly access sensitive information. (CVE-2015-5330) It was discovered that the Samba LDAP server incorrectly handled certain packets. A remote attacker could use this issue to cause the LDAP server to stop responding, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-7540) Andrew Bartlett discovered that Samba incorrectly checked administrative privileges during creation of machine accounts. A remote attacker could possibly use this issue to bypass intended access restrictions in certain environments. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-8467)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.10: samba 2:4.1.17+dfsg-4ubuntu3.2
Ubuntu 14.04 LTS: samba 2:4.1.6+dfsg-1ubuntu2.14.04.12
Ubuntu 12.04 LTS: samba 2:3.6.3-2ubuntu2.14
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2855-2 http://www.ubuntu.com/usn/usn-2855-1 https://launchpad.net/bugs/1545750
Package Information: https://launchpad.net/ubuntu/+source/samba/2:4.1.17+dfsg-4ubuntu3.2 https://launchpad.net/ubuntu/+source/samba/2:4.1.6+dfsg-1ubuntu2.14.04.12 https://launchpad.net/ubuntu/+source/samba/2:3.6.3-2ubuntu2.14
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