The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 mishandle DCERPC connections, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka "BADLOCK."

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-3548-1 samba security update
Ubuntu USN Ubuntu USN USN-2950-1 Samba vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
Link Providers
http://badlock.org/ cve-icon cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0611.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0612.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0613.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0614.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0618.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0619.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0620.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0621.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0623.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0624.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-0625.html cve-icon cve-icon
http://www.debian.org/security/2016/dsa-3548 cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html cve-icon cve-icon
http://www.securityfocus.com/bid/86002 cve-icon cve-icon
http://www.securitytracker.com/id/1035533 cve-icon cve-icon
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2950-1 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2950-2 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2950-3 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2950-4 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2950-5 cve-icon cve-icon
https://access.redhat.com/articles/2243351 cve-icon
https://access.redhat.com/articles/2253041 cve-icon
https://access.redhat.com/security/vulnerabilities/badlock cve-icon cve-icon
https://bto.bluecoat.com/security-advisory/sa122 cve-icon cve-icon
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05162399 cve-icon cve-icon
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05166182 cve-icon cve-icon
https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes cve-icon cve-icon
https://kb.netapp.com/support/s/article/ka51A0000008SXzQAM/smb-vulnerabilities-in-multiple-netapp-products cve-icon cve-icon
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40196 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2016-2118 cve-icon
https://security.gentoo.org/glsa/201612-47 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2016-2118 cve-icon
https://www.kb.cert.org/vuls/id/813296 cve-icon cve-icon
https://www.samba.org/samba/history/samba-4.2.10.html cve-icon cve-icon
https://www.samba.org/samba/latest_news.html#4.4.2 cve-icon cve-icon
https://www.samba.org/samba/security/CVE-2016-2118.html cve-icon cve-icon
History

No history.

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-05T23:17:50.706Z

Reserved: 2016-01-29T00:00:00.000Z

Link: CVE-2016-2118

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-04-12T23:59:37.497

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-2118

cve-icon Redhat

Severity : Important

Publid Date: 2016-04-12T00:00:00Z

Links: CVE-2016-2118 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses