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CVE-2021-3501

Status Candidate

Overview

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Related Files

Red Hat Security Advisory 2021-2522-01
Posted Jun 22, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2522-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include integer overflow and privilege escalation vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-24489, CVE-2021-27219, CVE-2021-3501, CVE-2021-3560
SHA-256 | f5fe6b9d404ea0fffaa66f8c161b4e2c24d4a8d748a31878c1e5c27d1631484c
Red Hat Security Advisory 2021-2286-01
Posted Jun 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2286-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.7.16. Issues addressed include a remote shell upload vulnerability.

tags | advisory, remote, shell
systems | linux, redhat
advisories | CVE-2021-27219, CVE-2021-3121, CVE-2021-3501, CVE-2021-3543
SHA-256 | ece0bc4caa2fe2afa806da433841d46e04bb783b0678dc25fab79a4e0d765379
Ubuntu Security Notice USN-4983-1
Posted Jun 4, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4983-1 - Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-29155, CVE-2021-31829, CVE-2021-33200, CVE-2021-3501
SHA-256 | c8d6a4d1ac66d32b7a2f8aec8f4be767802cb76e03860da72e2558c5974f173a
Ubuntu Security Notice USN-4977-1
Posted Jun 3, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4977-1 - Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service. Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. 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, protocol
systems | linux, ubuntu
advisories | CVE-2020-25670, CVE-2020-25673, CVE-2021-29155, CVE-2021-3501
SHA-256 | e08eead12351b562c8393556b5d0d894119bfeac691f89307ba19ce69383d1de
Red Hat Security Advisory 2021-2168-01
Posted Jun 1, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2168-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-3501, CVE-2021-3543
SHA-256 | 54bd74fb552802738cbdde5b8c93eb1b4b7df96eca91d8c4e5270b64ceffa2e3
Red Hat Security Advisory 2021-2165-01
Posted Jun 1, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2165-01 - 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-2021-3501
SHA-256 | 6da6b9ec60b82c610e0c5a7bc75693e5f878172a20d44ed51102d245a512d4a3
Red Hat Security Advisory 2021-2169-01
Posted Jun 1, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2169-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-3501, CVE-2021-3543
SHA-256 | 57c250694dc9f042f0f6425c74ede96627017e8272ef870419b7c0d4dbe52849
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