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CVE-2017-12163

Status Candidate

Overview

An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.

Related Files

Ubuntu Security Notice USN-3426-2
Posted Nov 2, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3426-2 - USN-3426-1 fixed several vulnerabilities in Samba. This update provides the corresponding update for Ubuntu 12.04 ESM.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-12150, CVE-2017-12163
SHA-256 | bfd937d0e01692d9c76f33269e5debe131991da86cfc1bd357bfb8608560ef41
Red Hat Security Advisory 2017-2858-01
Posted Oct 4, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2858-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix: It was found that samba did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2017-12150, CVE-2017-12151, CVE-2017-12163
SHA-256 | e1751858f2654a30e58a89f135fc7f0a4a103cd6fbfb2d44571d6962a18d585f
Debian Security Advisory 3983-1
Posted Sep 22, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3983-1 - Multiple security issues have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix.

tags | advisory
systems | linux, unix, debian
advisories | CVE-2017-12150, CVE-2017-12151, CVE-2017-12163
SHA-256 | d20e3978bfa76603621405671436ff72e2de88512d266516e792372b832b4216
Red Hat Security Advisory 2017-2791-01
Posted Sep 21, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2791-01 - Samba is an open-source implementation of the Server Message Block or Common Internet File System protocol, which allows PC-compatible machines to share files, printers, and other information. Security Fix: It was found that samba did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2017-12150, CVE-2017-12163
SHA-256 | 4d4892162624cc5f56a309259e711433107bdaff738b0902cd06a0920c2357d1
Red Hat Security Advisory 2017-2790-01
Posted Sep 21, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2790-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix: It was found that samba did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2017-12150, CVE-2017-12151, CVE-2017-12163
SHA-256 | 6fdc918f44a544b6b95ca2d43f660a74ab6f5bafc9df5d9b96e58d4d2091ea74
Ubuntu Security Notice USN-3426-1
Posted Sep 21, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3426-1 - Stefan Metzmacher discovered that Samba incorrectly enforced SMB signing in certain situations. A remote attacker could use this issue to perform a man in the middle attack. Stefan Metzmacher discovered that Samba incorrectly handled encryption across DFS redirects. A remote attacker could use this issue to perform a man in the middle attack. Yihan Lian and Zhibin Hu discovered that Samba incorrectly handled memory when SMB1 is being used. A remote attacker could possibly use this issue to obtain server memory contents. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2017-12150, CVE-2017-12151, CVE-2017-12163
SHA-256 | fa491e751279b5ea9e1da0bb1115ba5f62388c95fddad08cf232e729f712f242
Red Hat Security Advisory 2017-2789-01
Posted Sep 21, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2789-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix: A race condition was found in samba server. A malicious samba client could use this flaw to access files and directories in areas of the server file system not exported under the share definitions.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2017-12150, CVE-2017-12163, CVE-2017-2619
SHA-256 | a8cc2c9ae85665ac880ca785b563e8c299483d8d2baeccb37150982ed7663e29
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