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Ls Advisories Gentoo Esm H240
Price Tag 1security advisorysecurity issuegentoo

Gentoo GLSA 201701-30 Normal: Vzctl Bypass Threat on Ploop Containers

A vulnerability in vzctl might allow attackers to gain control over ploop containers.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201701-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: vzctl: Security bypass Date: January 11, 2017 Bugs: #560522 ID: 201701-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A vulnerability in vzctl might allow attackers to gain control over ploop containers. Background ========= vzctl is a set of control tools for the OpenVZ server virtualization solution. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-cluster/vzctl < 4.9.4 > = 4.9.4 Description ========== It was discovered that vzctl determined the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory. This allows local simfs container (CT) root usersto change the root password for arbitrary ploop containers. This is demonstrated by a symlink attack on the ploop container root.hdd file which can then be used to access a control panel. Impact ===== An attacker with root privileges, in a simfs-based container, could gain control over ploop-based containers. Workaround ========= There is no known workaround at this time. Resolution ========= All vzctl users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =sys-cluster/vzctl-4.9.4" References ========= [ 1 ] CVE-2015-6927 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-6927 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201701-30 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5/ . Learn about the latest Gentoo GLSA 202310-15 advisory regarding a security vulnerability in vzctl that impacts ploop containers.. Ploop Container Management,Vzctl Control Tools,Gentoo Security Advisory. . LinuxSecurity.com Team

Calendar 2 Jan 11, 2017 Gentoo
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Ls Advisories Debian Esm H240
Price Tag 1security advisorydebianattack

Debian: DSA-3357-1 Moderate: Vzctl Local Root Access Threat

It was discovered that vzctl, a set of control tools for the OpenVZ server virtualisation solution, determined the storage layout of containers based on the presense of an XML file inside the container. An attacker with local root privileges in a simfs-based container . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3357-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/security/ Moritz Muehlenhoff September 13, 2015 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : vzctl CVE ID : not yet available It was discovered that vzctl, a set of control tools for the OpenVZ server virtualisation solution, determined the storage layout of containers based on the presense of an XML file inside the container. An attacker with local root privileges in a simfs-based container could gain control over ploop-based containers. Further information on the prerequites of such an attack can be found at The oldstable distribution (wheezy) is not affected. For the stable distribution (jessie), this problem has been fixed in version 4.8-1+deb8u2. During the update existing configurations are automatically updated. For the testing distribution (stretch), this problem has been fixed in version 4.9.4-2. For the unstable distribution (sid), this problem has been fixed in version 4.9.4-2. We recommend that you upgrade your vzctl packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. . Debian Security Update DSA-3358-1 concerns a vulnerability in vzctl impacting container configurations and potentially allowing local administrative access.. Vzctl, Debian Security Advisory, Container Management,Virtualization Tools. . Severity: Important. LinuxSecurity.com Team

Calendar 2 Sep 13, 2015 •Important Debian
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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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