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CVE-2016-1237

Status Candidate

Overview

nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.

Related Files

Ubuntu Security Notice USN-3070-4
Posted Aug 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3070-4 - USN-3070-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Various other issues were also addressed.

tags | advisory, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-1237, CVE-2016-5244, CVE-2016-5400, CVE-2016-5696, CVE-2016-5728, CVE-2016-5828, CVE-2016-5829, CVE-2016-6197
MD5 | 6d0aff41c891b55cee132d53c5200664
Ubuntu Security Notice USN-3070-3
Posted Aug 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3070-3 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-1237, CVE-2016-5244, CVE-2016-5400, CVE-2016-5696, CVE-2016-5728, CVE-2016-5828, CVE-2016-5829, CVE-2016-6197
MD5 | 6ce421739c7d1ac3c023ee4d2ad4f2e3
Ubuntu Security Notice USN-3070-2
Posted Aug 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3070-2 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-1237, CVE-2016-5244, CVE-2016-5400, CVE-2016-5696, CVE-2016-5728, CVE-2016-5828, CVE-2016-5829, CVE-2016-6197
MD5 | de010302408a08088e13e927ebc77809
Ubuntu Security Notice USN-3070-1
Posted Aug 29, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3070-1 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-1237, CVE-2016-5244, CVE-2016-5400, CVE-2016-5696, CVE-2016-5728, CVE-2016-5828, CVE-2016-5829, CVE-2016-6197
MD5 | 15b1c9eabf01600a852384ded11c8a37
Ubuntu Security Notice USN-3053-1
Posted Aug 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3053-1 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-1237, CVE-2016-4470, CVE-2016-4794, CVE-2016-5243
MD5 | eefeff6c83dbbcc6acd933bfbed1daef
Debian Security Advisory 3607-1
Posted Jun 28, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3607-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2015-7515, CVE-2016-0821, CVE-2016-1237, CVE-2016-1583, CVE-2016-2117, CVE-2016-2143, CVE-2016-2184, CVE-2016-2185, CVE-2016-2186, CVE-2016-2187, CVE-2016-3070, CVE-2016-3134, CVE-2016-3136, CVE-2016-3137, CVE-2016-3138, CVE-2016-3140, CVE-2016-3156, CVE-2016-3157, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-3961, CVE-2016-4470, CVE-2016-4482, CVE-2016-4485, CVE-2016-4486, CVE-2016-4565, CVE-2016-4569
MD5 | 97be339593413497c6543462dc22c534
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