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CVE-2016-3841

Status Candidate

Overview

The IPv6 stack in the Linux kernel before 4.3.3 mishandles options data, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call.

Related Files

Red Hat Security Advisory 2016-2695-01
Posted Nov 10, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2695-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service via a crafted sendmsg system call.

tags | advisory, denial of service, kernel, local
systems | linux, redhat
advisories | CVE-2016-3841
SHA-256 | 5c9d8351889bf9f327197170f7a0516920b25f9a93bc9f8eba170c668ad60d6f
Red Hat Security Advisory 2016-2584-02
Posted Nov 3, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2584-02 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service via a crafted sendmsg system call.

tags | advisory, denial of service, kernel, local
systems | linux, redhat
advisories | CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8746, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2015-8956, CVE-2016-2053, CVE-2016-2069, CVE-2016-2117, CVE-2016-2384, CVE-2016-2847, CVE-2016-3070, CVE-2016-3156, CVE-2016-3699, CVE-2016-3841, CVE-2016-4569, CVE-2016-4578, CVE-2016-4581, CVE-2016-4794, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480
SHA-256 | 88a2bd8c0f30988120dd0ca735846a15c63a1e9c06edc72ce61959751724fbc4
Red Hat Security Advisory 2016-2574-02
Posted Nov 3, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2574-02 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service via a crafted sendmsg system call.

tags | advisory, denial of service, kernel, local
systems | linux, redhat
advisories | CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8746, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2015-8956, CVE-2016-2053, CVE-2016-2069, CVE-2016-2117, CVE-2016-2384, CVE-2016-2847, CVE-2016-3070, CVE-2016-3156, CVE-2016-3699, CVE-2016-3841, CVE-2016-4569, CVE-2016-4578, CVE-2016-4581, CVE-2016-4794, CVE-2016-5412, CVE-2016-5828, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480
SHA-256 | a58b7b5d58e92d5a084026c53f5461e431441e86891787922c799b50ae4376ed
Ubuntu Security Notice USN-3083-1
Posted Sep 19, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3083-1 - Dmitry Vyukov discovered that the IPv6 implementation in the Linux kernel did not properly handle options data, including a use-after-free. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed when handling heartbeat- timeout events in the SCTP implementation of the Linux kernel. A remote attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-8767, CVE-2016-3841
SHA-256 | 52eab0418053602603e73f209e3485a85f8d0aa24f7c884e3f1b8270ed05f0b4
Ubuntu Security Notice USN-3083-2
Posted Sep 19, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3083-2 - USN-3083-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. Dmitry Vyukov discovered that the IPv6 implementation in the Linux kernel did not properly handle options data, including a use-after-free. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-8767, CVE-2016-3841
SHA-256 | 652cd80153f903b94a35a79406720a21993e90e76a9a9d24eecb192b752aa471
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