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CVE-2020-25641

Status Candidate

Overview

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Related Files

Ubuntu Security Notice USN-4752-1
Posted Feb 25, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4752-1 - Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered that legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. A physically proximate attacker could use this to impersonate a previously paired Bluetooth device. Jay Shin discovered that the ext4 file system implementation in the Linux kernel did not properly handle directory access with broken indexing, leading to an out-of-bounds read vulnerability. 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-2020-10135, CVE-2020-14314, CVE-2020-15436, CVE-2020-15437, CVE-2020-24490, CVE-2020-25212, CVE-2020-25284, CVE-2020-25641, CVE-2020-25643, CVE-2020-25704, CVE-2020-27152, CVE-2020-27815, CVE-2020-28588, CVE-2020-28915, CVE-2020-29368, CVE-2020-29369, CVE-2020-29371, CVE-2020-29660, CVE-2020-29661, CVE-2020-35508
MD5 | 9add7841f0ccf8f64e1da83e75e06c64
Red Hat Security Advisory 2021-0037-01
Posted Jan 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0037-01 - 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 4.6.12.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-13249, CVE-2020-1971, CVE-2020-2304, CVE-2020-2305, CVE-2020-2306, CVE-2020-2307, CVE-2020-2308, CVE-2020-2309, CVE-2020-25641, CVE-2020-25694, CVE-2020-25696, CVE-2020-2574, CVE-2020-2752, CVE-2020-28362, CVE-2020-2922, CVE-2020-8177, CVE-2020-8566
MD5 | 1a4403e3050251feab829fbd6db80c9c
Red Hat Security Advisory 2021-0039-01
Posted Jan 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0039-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-1971, CVE-2020-2304, CVE-2020-2305, CVE-2020-2306, CVE-2020-2307, CVE-2020-2308, CVE-2020-2309, CVE-2020-25641, CVE-2020-28362, CVE-2020-8177
MD5 | a6bdbd10273c32b5809b07947cff35da
Red Hat Security Advisory 2021-0136-01
Posted Jan 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0136-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2020-25641
MD5 | 1d49a6729e2d0a14c1ec07cecb765517
Red Hat Security Advisory 2021-0073-01
Posted Jan 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0073-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2020-25641
MD5 | cbf6053ea78851d5ddb84cf8bd312561
Ubuntu Security Notice USN-4660-2
Posted Dec 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4660-2 - USN-4660-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression in the software raid10 driver when used with fstrim that could lead to data corruption. This update fixes the problem. It was discovered that a race condition existed in the perf subsystem of the Linux kernel, leading to a use-after-free vulnerability. An attacker with access to the perf subsystem 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, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25285, CVE-2020-25641, CVE-2020-25643, CVE-2020-25645, CVE-2020-28915, CVE-2020-4788
MD5 | 13b59c23735c20b99a07f2be7c796f7e
Red Hat Security Advisory 2020-5374-01
Posted Dec 8, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5374-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2020-25641
MD5 | af961650f7ec81708dfbf8ca7aea8e39
Ubuntu Security Notice USN-4660-1
Posted Dec 3, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4660-1 - It was discovered that a race condition existed in the perf subsystem of the Linux kernel, leading to a use-after-free vulnerability. An attacker with access to the perf subsystem could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the frame buffer implementation in the Linux kernel did not properly handle some edge cases in software scrollback. 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-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25285, CVE-2020-25641, CVE-2020-25643, CVE-2020-25645, CVE-2020-28915, CVE-2020-4788
MD5 | ee3119babe4a4a73b8652559a6df5f65
Red Hat Security Advisory 2020-5079-01
Posted Nov 11, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5079-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2020-25641
MD5 | c7dae196b49762d1673903f3871ed1e4
Ubuntu Security Notice USN-4576-1
Posted Oct 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4576-1 - Hador Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Jay Shin discovered that the ext4 file system implementation in the Linux kernel did not properly handle directory access with broken indexing, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-14314, CVE-2020-14385, CVE-2020-16119, CVE-2020-16120, CVE-2020-25285, CVE-2020-25641
MD5 | 73dae97a670b565b41f5e2687d970fc6
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