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CVE-2021-37576

Status Candidate

Overview

arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.

Related Files

Red Hat Security Advisory 2021-3949-01
Posted Oct 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3949-01 - Red Hat Advanced Cluster Management for Kubernetes 2.1.12 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains updates to one or more container images for Red Hat Advanced Cluster Management for Kubernetes. Issues addressed include denial of service, integer overflow, and out of bounds read vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-4658, CVE-2021-22543, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23840, CVE-2021-23841, CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32672, CVE-2021-32675, CVE-2021-32687, CVE-2021-36222, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576, CVE-2021-37750, CVE-2021-41099
MD5 | 8478436d4e2447ab1ccf1cdf0d7ecf91
Red Hat Security Advisory 2021-3925-01
Posted Oct 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3925-01 - Red Hat Advanced Cluster Management for Kubernetes 2.3.3 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and provide security updates. Issues addressed include denial of service, information leakage, integer overflow, and out of bounds read vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-4658, CVE-2020-25648, CVE-2021-21670, CVE-2021-21671, CVE-2021-22543, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23017, CVE-2021-23840, CVE-2021-23841, CVE-2021-25741, CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32672, CVE-2021-32675, CVE-2021-32687, CVE-2021-32690, CVE-2021-36222, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576, CVE-2021-37750, CVE-2021-41099
MD5 | c88f32f1bc609ae5ac195ed8215b8993
Ubuntu Security Notice USN-5092-3
Posted Oct 19, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5092-3 - USN-5092-2 fixed vulnerabilities in Linux 5.11-based kernels. Unfortunately, for Linux kernels intended for use within Microsoft Azure environments, that update introduced a regression that could cause the kernel to fail to boot in large Azure instance types. This update fixes the problem. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-33624, CVE-2021-34556, CVE-2021-35477, CVE-2021-3679, CVE-2021-37159, CVE-2021-37576, CVE-2021-38160, CVE-2021-38199, CVE-2021-38201, CVE-2021-38204, CVE-2021-38205, CVE-2021-41073
MD5 | 1e23a25af868dd8101bc775e11c249fc
Ubuntu Security Notice USN-5091-3
Posted Oct 15, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5091-3 - USN-5091-1 fixed vulnerabilities in Linux 5.4-based kernels. Unfortunately, for Linux kernels intended for use within Microsoft Azure environments, that update introduced a regression that could cause the kernel to fail to boot in large Azure instance types. This update fixes the problem. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-33624, CVE-2021-3679, CVE-2021-37576, CVE-2021-38160, CVE-2021-38199, CVE-2021-38204
MD5 | 3eae914659b526575cec3ea4ff5dfd0e
Red Hat Security Advisory 2021-3801-01
Posted Oct 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3801-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a bypass vulnerability.

tags | advisory, kernel, bypass
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576
MD5 | 08385e9e15c823cef469da86a32c4091
Red Hat Security Advisory 2021-3812-01
Posted Oct 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3812-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include bypass and out of bounds write vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-22555, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576
MD5 | db2dba965a54dbae9da73ba72c6ba2a6
Red Hat Security Advisory 2021-3814-01
Posted Oct 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3814-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include bypass and out of bounds write vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-22555, CVE-2021-37576
MD5 | 07e383b11568592564ef5a4054e25ab3
Red Hat Security Advisory 2021-3768-01
Posted Oct 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3768-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a bypass vulnerability.

tags | advisory, kernel, bypass
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-37576
MD5 | e2909a51c364dfdec9cdb24cae7c10e6
Red Hat Security Advisory 2021-3766-01
Posted Oct 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3766-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a bypass vulnerability.

tags | advisory, kernel, bypass
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-37576
MD5 | 56e446a1de692e0849cdbcb2a9cc9d9b
Red Hat Security Advisory 2021-3725-01
Posted Oct 5, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3725-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include bypass and out of bounds write vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-22555, CVE-2021-32399, CVE-2021-37576
MD5 | 5f525caea80c8f4ccd8a4930be513069
Red Hat Security Advisory 2021-3694-01
Posted Sep 30, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3694-01 - The Migration Toolkit for Containers enables you to migrate Kubernetes resources, persistent volume data, and internal container images between OpenShift Container Platform clusters, using the MTC web console or the Kubernetes API. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service
systems | linux, redhat
advisories | CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-36222, CVE-2021-3749, CVE-2021-37576, CVE-2021-37750, CVE-2021-38201
MD5 | 1c9dc0773ccbd6d66d1f85debc49bc37
Ubuntu Security Notice USN-5092-2
Posted Sep 29, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5092-2 - Valentina Palmiotti discovered that the io_uring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this to execute arbitrary code. Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in the Linux kernel missed possible mispredicted branches due to type confusion, allowing a side-channel attack. An attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-33624, CVE-2021-34556, CVE-2021-35477, CVE-2021-3679, CVE-2021-37159, CVE-2021-37576, CVE-2021-38160, CVE-2021-38199, CVE-2021-38201, CVE-2021-38204, CVE-2021-38205, CVE-2021-41073
MD5 | aeee33eaab84532e9f4d7e57892c0bc1
Ubuntu Security Notice USN-5094-1
Posted Sep 29, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5094-1 - It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to expose sensitive information or execute arbitrary code. It was discovered that the tracing subsystem in the Linux kernel did not properly keep track of per-cpu ring buffer state. A privileged attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2021-22543, CVE-2021-3679, CVE-2021-3732, CVE-2021-37576, CVE-2021-38204, CVE-2021-38205
MD5 | 279180ec22dccd9a21dcad0096c3b3b8
Ubuntu Security Notice USN-5092-1
Posted Sep 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5092-1 - Valentina Palmiotti discovered that the io_uring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this to execute arbitrary code. Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in the Linux kernel missed possible mispredicted branches due to type confusion, allowing a side-channel attack. An attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-33624, CVE-2021-34556, CVE-2021-35477, CVE-2021-3679, CVE-2021-37159, CVE-2021-37576, CVE-2021-38160, CVE-2021-38199, CVE-2021-38201, CVE-2021-38204, CVE-2021-38205, CVE-2021-41073
MD5 | 635f2738af5765ac79ac9852318e072d
Ubuntu Security Notice USN-5091-1
Posted Sep 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5091-1 - Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in the Linux kernel missed possible mispredicted branches due to type confusion, allowing a side-channel attack. An attacker could use this to expose sensitive information. It was discovered that the tracing subsystem in the Linux kernel did not properly keep track of per-cpu ring buffer state. A privileged attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2021-33624, CVE-2021-3679, CVE-2021-37576, CVE-2021-38160, CVE-2021-38199, CVE-2021-38204
MD5 | 994b5a35c8fde81a170f46fc3eced5c3
Red Hat Security Advisory 2021-3598-01
Posted Sep 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3598-01 - OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-22555, CVE-2021-27218, CVE-2021-33195, CVE-2021-33197, CVE-2021-33198, CVE-2021-34558, CVE-2021-3609, CVE-2021-37576, CVE-2021-38201, CVE-2021-38575
MD5 | 808e80d3a87efc6104e88e2d2359ade3
Red Hat Security Advisory 2021-3447-01
Posted Sep 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3447-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an out of bounds access vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-37576, CVE-2021-38201
MD5 | 25f8a4c91e11b8712f7106139a1309f3
Red Hat Security Advisory 2021-3446-01
Posted Sep 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3446-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-0512, CVE-2021-3715, CVE-2021-37576
MD5 | 3781a034f8565e89037e08f5c2b6d6cf
Red Hat Security Advisory 2021-3444-01
Posted Sep 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3444-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3609, CVE-2021-3715, CVE-2021-37576
MD5 | bf46516021feaa6dd6eb02b4283c9637
Red Hat Security Advisory 2021-3443-01
Posted Sep 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3443-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-0512, CVE-2021-3715, CVE-2021-37576
MD5 | cce664b30d0b8f9558f28a0e74e72030
Red Hat Security Advisory 2021-3442-01
Posted Sep 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3442-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3609, CVE-2021-3715, CVE-2021-37576
MD5 | 82171edb0f0b806e94120c89e3c4a198
Red Hat Security Advisory 2021-3436-01
Posted Sep 7, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3436-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-37576
MD5 | fa177985703659038b0cb96aff90ae2e
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