CVE-2016-2118
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 36.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
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."
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 36.93% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-254
- Affected
- samba/samba · canonical/ubuntu linux · debian/debian linux
- Source
- secalert@redhat.com
References
- http://badlock.org/Technical Description, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0611.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0612.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0613.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0614.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0618.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0619.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0620.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0621.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0623.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0624.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0625.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3548Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
- http://www.securityfocus.com/bid/86002Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035533Third Party Advisory, VDB Entry
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2950-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2950-2Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.