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Kernel Files

Debian Security Advisory 4368-1
Posted Jan 15, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4368-1 - Guido Vranken discovered that an incorrect bounds check in ZeroMQ, a lightweight messaging kernel, could result in the execution of arbitrary code.

tags | advisory, arbitrary, kernel
systems | linux, debian
advisories | CVE-2019-6250
MD5 | d0ebb6a44e5eb5ba095db014dad1e17c
cryptmount Filesystem Manager 5.3.1
Posted Jan 7, 2019
Authored by RW Penney | Site cryptmount.sourceforge.net

cryptmount is a utility for creating and managing secure filing systems on GNU/Linux systems. After initial setup, it allows any user to mount or unmount filesystems on demand, solely by providing the decryption password, with any system devices needed to access the filing system being configured automatically. A wide variety of encryption schemes (provided by the kernel dm-crypt system and the libgcrypt library) can be used to protect both the filesystem and the access key. The protected filing systems can reside in either ordinary files or disk partitions. The package also supports encrypted swap partitions, and automatic configuration on system boot-up.

Changes: Fixed memory cleanup error on closedown when using multiple targets. Fixed memory cleanup error on closedown when using multiple targets.
tags | tool, kernel, encryption
systems | linux, unix
MD5 | 7c6d76adbd6bd418a0d92e55a6c93e65
Red Hat Security Advisory 2019-0022-01
Posted Jan 3, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0022-01 - The keepalived utility provides simple and robust facilities for load balancing and high availability. The load balancing framework relies on the well-known and widely used IP Virtual Server kernel module providing layer-4 load balancing. Keepalived implements a set of checkers to dynamically and adaptively maintain and manage a load balanced server pool according to the health of the servers. Keepalived also implements the Virtual Router Redundancy Protocol to achieve high availability with director failover. Issues addressed include buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, code execution, protocol
systems | linux, redhat
advisories | CVE-2018-19115
MD5 | b861d262ff7dc8c96c64b2ee9162c62a
ATool 1.0.0.22 Buffer Overflow
Posted Dec 22, 2018
Authored by Aloyce J. Makalanga

ATool version 1.0.0.22 suffers from a kernel pool buffer overflow vulnerability.

tags | exploit, overflow, kernel
advisories | CVE-2018-20331
MD5 | d1696ed6f1d2fe4d3cbc45aecd34e668
Ubuntu Security Notice USN-3849-1
Posted Dec 21, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3849-1 - It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. A local attacker could use this to cause a denial of service. It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. 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
systems | linux, ubuntu
advisories | CVE-2017-2647, CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18386, CVE-2018-18690, CVE-2018-18710
MD5 | ab84b9e247a45108e4c874fdfe0f245f
Ubuntu Security Notice USN-3849-2
Posted Dec 21, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3849-2 - USN-3849-1 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 ESM. It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-2647, CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18386, CVE-2018-18690, CVE-2018-18710
MD5 | 1ad97b490d8d1e9628e77408ea2c2d1b
Ubuntu Security Notice USN-3847-3
Posted Dec 21, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3847-3 - USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux kernel for Microsoft Azure Cloud systems for Ubuntu 14.04 LTS. It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. 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-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710
MD5 | b186fc2a923abf5659c017b5ea42a3c3
Ubuntu Security Notice USN-3848-2
Posted Dec 21, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3848-2 - USN-3848-1 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. It was discovered that a double free existed in the AMD GPIO driver in the Linux kernel. 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-2017-18174, CVE-2018-12896, CVE-2018-18690, CVE-2018-18710
MD5 | 8866975e977d4c45d391b4d9035dd8ed
Ubuntu Security Notice USN-3848-1
Posted Dec 21, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3848-1 - It was discovered that a double free existed in the AMD GPIO driver in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, osx, ubuntu
advisories | CVE-2017-18174, CVE-2018-12896, CVE-2018-18690, CVE-2018-18710
MD5 | 54eea9cfff67d88df3b99da978ff5b90
Kernel Live Patch Security Notice LSN-0046-1
Posted Dec 20, 2018
Authored by Benjamin M. Romer

It was discovered that an integer overflow vulnerability existed in the CDRom driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux
advisories | CVE-2017-5753, CVE-2018-10880, CVE-2018-10902, CVE-2018-14734, CVE-2018-16276, CVE-2018-16658, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710, CVE-2018-9363
MD5 | 62b6f4b7e6e1fd65e163f970baba56dc
Ubuntu Security Notice USN-3847-2
Posted Dec 20, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3847-2 - USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. 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-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710
MD5 | b0c6ce592d43ca8552efd6262de2cbbb
Ubuntu Security Notice USN-3847-1
Posted Dec 20, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3847-1 - It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, osx, ubuntu
advisories | CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710
MD5 | 5703c2f44fdffc67aa1c3e986372d1a0
Ubuntu Security Notice USN-3846-1
Posted Dec 20, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3846-1 - It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information.

tags | advisory, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-18710
MD5 | 0492ac4c9faaf5253e3674fa0f151866
Linux Kernel 4.4 rtnetlink Stack Memory Disclosure
Posted Dec 19, 2018
Authored by Jinbum Park, Kangjie Lu

Linux kernel version 4.4 rtnetlink stack memory disclosure exploit.

tags | exploit, kernel, info disclosure
systems | linux
advisories | CVE-2016-4486
MD5 | e3d5334afb0ed83e5e518e3fbe9fd294
Red Hat Security Advisory 2018-3843-01
Posted Dec 18, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3843-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service and null pointer vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-14646
MD5 | be747182672ea287c81daf5428bf722b
Red Hat Security Advisory 2018-3822-01
Posted Dec 13, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3822-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2017-11176, CVE-2017-15265, CVE-2017-8824
MD5 | c301b49a9797cdedb4d138d919f36628
Red Hat Security Advisory 2018-3823-01
Posted Dec 13, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3823-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2017-15265
MD5 | ba98eb254b3c0ff4e90c59c44d9cee5c
Ubuntu Security Notice USN-3836-2
Posted Dec 6, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3836-2 - USN-3836-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. Jann Horn discovered that the Linux kernel mishandles mapping UID or GID ranges inside nested user namespaces in some situations. A local attacker could use this to bypass access controls on resources outside the namespace. Various other issues were also addressed.

tags | advisory, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-18955, CVE-2018-6559
MD5 | 40f74c61b11b342e43d24c42da24a458
Ubuntu Security Notice USN-3836-1
Posted Dec 4, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3836-1 - Jann Horn discovered that the Linux kernel mishandles mapping UID or GID ranges inside nested user namespaces in some situations. A local attacker could use this to bypass access controls on resources outside the namespace. Philipp Wendler discovered that the overlayfs implementation in the Linux kernel did not properly verify the directory contents permissions from within a unprivileged user namespace. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-18955, CVE-2018-6559
MD5 | 158521f793a16089323ee0be9c6ad5ce
Ubuntu Security Notice USN-3835-1
Posted Dec 4, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3835-1 - Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. Jann Horn discovered that the mremap system call in the Linux kernel did not properly flush the TLB when completing, potentially leaving access to a physical page after it has been released to the page allocator. A local attacker could use this to cause a denial of service , expose sensitive information, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-17972, CVE-2018-18281, CVE-2018-18445, CVE-2018-18653, CVE-2018-18955, CVE-2018-6559
MD5 | 797f806913c130a0d4051adda370818d
Linux Kernel 4.8 (Ubuntu 16.04) sctp Kernel Pointer Leak
Posted Dec 1, 2018
Authored by Jinbum Park

Linux Kernel version 4.8 on Ubuntu 16.04 suffers from an sctp kernel pointer leak vulnerability.

tags | exploit, kernel
systems | linux, ubuntu
advisories | CVE-2017-7558
MD5 | fc9790b1e137cf5ee0cca7cf36225b56
Ubuntu Security Notice USN-3833-1
Posted Nov 30, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3833-1 - Jann Horn discovered that the Linux kernel mishandles mapping UID or GID ranges inside nested user namespaces in some situations. A local attacker could use this to bypass access controls on resources outside the namespace. Philipp Wendler discovered that the overlayfs implementation in the Linux kernel did not properly verify the directory contents permissions from within a unprivileged user namespace. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-18955, CVE-2018-6559
MD5 | 332359216d6a177a45f3a9adbd36aa4c
Ubuntu Security Notice USN-3832-1
Posted Nov 30, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3832-1 - Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. Jann Horn discovered that the mremap system call in the Linux kernel did not properly flush the TLB when completing, potentially leaving access to a physical page after it has been released to the page allocator. A local attacker could use this to cause a denial of service , expose sensitive information, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-17972, CVE-2018-18281, CVE-2018-18445, CVE-2018-18653, CVE-2018-18955, CVE-2018-6559
MD5 | e6fcaa3ecb5ddac3d3d7836f6838675e
Linux Nested User Namespace idmap Limit Local Privilege Escalation
Posted Nov 28, 2018
Authored by Brendan Coles, Jann Horn | Site metasploit.com

This Metasploit module exploits a vulnerability in Linux kernels 4.15.0 to 4.18.18, and 4.19.0 to 4.19.1, where broken uid/gid mappings between nested user namespaces and kernel uid/gid mappings allow elevation to root (CVE-2018-18955). The target system must have unprivileged user namespaces enabled and the newuidmap and newgidmap helpers installed (from uidmap package). This Metasploit module has been tested successfully on: Fedora Workstation 28 kernel 4.16.3-301.fc28.x86_64; Kubuntu 18.04 LTS kernel 4.15.0-20-generic (x86_64); Linux Mint 19 kernel 4.15.0-20-generic (x86_64); Ubuntu Linux 18.04.1 LTS kernel 4.15.0-20-generic (x86_64).

tags | exploit, kernel, root
systems | linux, fedora, ubuntu
advisories | CVE-2018-18955
MD5 | bcf9a7b1fda21bc456a3d65c534bf1af
Ubuntu Security Notice USN-3816-3
Posted Nov 28, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3816-3 - USN-3816-1 fixed vulnerabilities in systemd. The fix for CVE-2018-6954 caused a regression in systemd-tmpfiles when running Ubuntu inside a container on some older kernels. This issue only affected Ubuntu 16.04 LTS. In order to continue to support this configuration, the fixes for CVE-2018-6954 have been reverted. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-15686, CVE-2018-15687, CVE-2018-6954
MD5 | be578aeb1bec867e87d540b182304d00
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