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CVE-2021-3640

Status Candidate

Overview

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

Related Files

Ubuntu Security Notice USN-6627-1
Posted Feb 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6627-1 - It was discovered that libde265 could be made to read out of bounds. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. It was discovered that libde265 did not properly manage memory. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-35452, CVE-2021-36408, CVE-2021-36409, CVE-2021-36411, CVE-2022-1253, CVE-2022-43236, CVE-2022-43237, CVE-2022-43241, CVE-2022-43242, CVE-2022-43243, CVE-2022-43248, CVE-2022-43252
SHA-256 | f02c27a054257e7caf3fb5163ff041b1ddb84edeb8858c8dee0b15323488e030
Red Hat Security Advisory 2024-0724-03
Posted Feb 8, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0724-03 - An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Issues addressed include buffer overflow, bypass, denial of service, double free, memory leak, null pointer, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2021-3640
SHA-256 | 5c463638a8edc5623216376f8dce92be65e11ef8ea1db023d0e820071520da83
Red Hat Security Advisory 2022-9040-01
Posted Dec 15, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-9040-01 - Red Hat Advanced Cluster Management for Kubernetes 2.6.3 General Availability release images, which provide security updates, fix bugs, and update container images. Issues addressed include bypass and denial of service vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2016-3709, CVE-2020-36516, CVE-2020-36558, CVE-2021-30002, CVE-2021-3640, CVE-2022-0168, CVE-2022-0561, CVE-2022-0562, CVE-2022-0617, CVE-2022-0854, CVE-2022-0865, CVE-2022-0891, CVE-2022-0908, CVE-2022-0909
SHA-256 | 832a8a303027268e02c709a9a31b625b910e69b15d9a0920f4e3c0fc0b32c7e8
Red Hat Security Advisory 2022-8889-01
Posted Dec 9, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-8889-01 - This is an Openshift Logging bug fix release. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2016-3709, CVE-2020-35525, CVE-2020-35527, CVE-2020-36516, CVE-2020-36518, CVE-2020-36558, CVE-2021-30002, CVE-2021-3640, CVE-2022-0168, CVE-2022-0561, CVE-2022-0562, CVE-2022-0617, CVE-2022-0854, CVE-2022-0865
SHA-256 | e8c5fca15c718cc8dd491c4bcec10fa3e9d5113ff39850bf8adff3a3d0ba7b03
Red Hat Security Advisory 2022-8781-01
Posted Dec 8, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-8781-01 - Logging Subsystem for Red Hat OpenShift has a security update. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2016-3709, CVE-2020-35525, CVE-2020-35527, CVE-2020-36516, CVE-2020-36518, CVE-2020-36558, CVE-2021-30002, CVE-2021-3640, CVE-2022-0168, CVE-2022-0561, CVE-2022-0562, CVE-2022-0617, CVE-2022-0854, CVE-2022-0865
SHA-256 | 94fd80ae3f797e0ff34ab1f8558bfde9e35443a2edff79d1f8f459b42a4421a3
Red Hat Security Advisory 2022-8267-01
Posted Nov 16, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-8267-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include code execution, denial of service, double free, information leakage, null pointer, out of bounds access, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-36516, CVE-2021-3640, CVE-2022-0168, CVE-2022-0617, CVE-2022-0854, CVE-2022-1016, CVE-2022-1048, CVE-2022-1184, CVE-2022-1280, CVE-2022-1353, CVE-2022-1679, CVE-2022-1852, CVE-2022-1998, CVE-2022-20368
SHA-256 | 61bdc9d3c34a59e606122d76bd54edf2c632981ed9b9216c4d074ec3e2c68e88
Red Hat Security Advisory 2022-7933-01
Posted Nov 15, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7933-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include code execution, denial of service, double free, information leakage, null pointer, out of bounds access, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-36516, CVE-2021-3640, CVE-2022-0168, CVE-2022-0617, CVE-2022-0854, CVE-2022-1016, CVE-2022-1048, CVE-2022-1184, CVE-2022-1280, CVE-2022-1353, CVE-2022-1679, CVE-2022-1852, CVE-2022-1998, CVE-2022-20368
SHA-256 | c7306cb3e2d21e76d1cf923d8e8152b52d296914c9dd94bd60e420cd01196ce6
Red Hat Security Advisory 2022-7444-01
Posted Nov 8, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7444-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, double free, information leakage, memory leak, null pointer, out of bounds access, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2020-36516, CVE-2020-36558, CVE-2021-30002, CVE-2021-3640, CVE-2022-0168, CVE-2022-0617, CVE-2022-0854, CVE-2022-1016, CVE-2022-1048, CVE-2022-1055, CVE-2022-1184, CVE-2022-1852, CVE-2022-20368, CVE-2022-2078
SHA-256 | 39767b39b329544197135ea8814c0b5fda845e7986b427bd47b86765b12afd20
Red Hat Security Advisory 2022-7683-01
Posted Nov 8, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7683-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, double free, information leakage, memory leak, null pointer, out of bounds access, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2020-36516, CVE-2020-36558, CVE-2021-30002, CVE-2021-3640, CVE-2022-0168, CVE-2022-0617, CVE-2022-0854, CVE-2022-1016, CVE-2022-1048, CVE-2022-1055, CVE-2022-1184, CVE-2022-1852, CVE-2022-20368, CVE-2022-2078
SHA-256 | 70f6b3ef6f61904b7dd7be40ca921b499c89a91d16a34a7cc822f34e34e87d24
Debian Security Advisory 5096-1
Posted Mar 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5096-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2020-29374, CVE-2020-36322, CVE-2021-20317, CVE-2021-20321, CVE-2021-20322, CVE-2021-22600, CVE-2021-28711, CVE-2021-28712, CVE-2021-28713, CVE-2021-28714, CVE-2021-28715, CVE-2021-28950, CVE-2021-3640, CVE-2021-3744
SHA-256 | 75c044bf4d2e418a7cc68e74ff3d6f180013990253cbe7731409a07b3b799fa7
Ubuntu Security Notice USN-5267-3
Posted Feb 17, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5267-3 - USN-5267-1 fixed vulnerabilities in the Linux kernel. This update provides the corresponding updates for the Linux kernel for Raspberry Pi devices. It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-3640, CVE-2021-3752, CVE-2021-42739
SHA-256 | 4a5754d3205b26805abdee8471083dc8dc84e0eb92a3e64f7fad52257c035f4c
Ubuntu Security Notice USN-5267-2
Posted Feb 9, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5267-2 - USN-5267-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression that caused the kernel to freeze when accessing CIFS shares in some situations. This update fixes the problem.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-3640, CVE-2021-3752, CVE-2021-42739
SHA-256 | 1fa802d233f94d6e25c95108667119d85ca0d36cae93f6c46bb286febc0cf8da
Ubuntu Security Notice USN-5268-1
Posted Feb 3, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5268-1 - Keyu Man discovered that the ICMP implementation in the Linux kernel did not properly handle received ICMP error packets. A remote attacker could use this to facilitate attacks on UDP based services that depend on source port randomization. It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary, kernel, local, udp
systems | linux, ubuntu
advisories | CVE-2021-20322, CVE-2021-3640, CVE-2021-3752, CVE-2021-42739
SHA-256 | b8ba9e5c3e6439e47e28cee9eee4587c8f0d9fce5daef2974af08b9d6e1a91e8
Ubuntu Security Notice USN-5267-1
Posted Feb 3, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5267-1 - It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-3640, CVE-2021-3752, CVE-2021-42739
SHA-256 | 60617003df6660f9983fff1c2b80b1947ece89928c93e406ca26afce7c3ebf67
Ubuntu Security Notice USN-5265-1
Posted Feb 3, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5265-1 - Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device removal. A privileged or physically proximate attacker could use this to cause a denial of service. It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-27820, CVE-2021-3640, CVE-2021-3752, CVE-2021-3772, CVE-2021-4001, CVE-2021-4090, CVE-2021-4093, CVE-2021-4202, CVE-2021-42327, CVE-2021-42739
SHA-256 | 7e0f9271a061ce26f953885a06bf885e09f3bf96703739534c4177eca1b1fff1
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