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CVE-2014-0239

Status Candidate

Overview

The internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.

Related Files

Gentoo Linux Security Advisory 201502-15
Posted Feb 26, 2015
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201502-15 - Multiple vulnerabilities have been found in Samba, the worst of which allowing a context-dependent attacker to bypass intended file restrictions, cause a Denial of Service or execute arbitrary code. Versions less than 3.6.25 are affected.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2012-6150, CVE-2013-4124, CVE-2013-4408, CVE-2013-4475, CVE-2013-4476, CVE-2013-4496, CVE-2014-0178, CVE-2014-0239, CVE-2014-0244, CVE-2014-3493, CVE-2015-0240
SHA-256 | 606c956ce8f163cd743c45062fd6201fce247d72cbe7bc650aed2d2440e1861b
Ubuntu Security Notice USN-2257-1
Posted Jun 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2257-1 - Christof Schmitt discovered that Samba incorrectly initialized a certain response field when vfs shadow copy was enabled. A remote authenticated attacker could use this issue to possibly obtain sensitive information. This issue only affected Ubuntu 13.10 and Ubuntu 14.04 LTS. It was discovered that the Samba internal DNS server incorrectly handled QR fields when processing incoming DNS messages. A remote attacker could use this issue to cause Samba to consume resources, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2014-0178, CVE-2014-0239, CVE-2014-0244, CVE-2014-3493
SHA-256 | ee495aec8ec133e39c6bb8c1541534dba3717b1f8a19b4fd91f988c20373902f
Slackware Security Advisory - samba Updates
Posted Jun 25, 2014
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New samba packages are available for Slackware 14.0, 14.1, and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2014-0178, CVE-2014-0239, CVE-2014-0244, CVE-2014-3493
SHA-256 | f86aa120b172105145f5b723718fabcd5166d7c4730b1069b104b7db69051aec
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