7
CVSSv3

CVE-2021-3640

Published: 03/03/2022 Updated: 07/11/2023
CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4
CVSS v3 Base Score: 7 | Impact Score: 5.9 | Exploitability Score: 1
VMScore: 614
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

It exists 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 (system crash) or possibly execute arbitrary code. (CVE-2021-3640) ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

linux linux kernel

debian debian linux 9.0

fedoraproject fedora 34

canonical ubuntu linux 18.04

canonical ubuntu linux 14.04

canonical ubuntu linux 20.04

canonical ubuntu linux 16.04

canonical ubuntu linux 21.10

netapp h300s_firmware -

netapp h700s_firmware -

netapp h300e_firmware -

netapp h500e_firmware -

netapp h700e_firmware -

netapp h410s_firmware -

netapp h410c_firmware -

netapp h500s_firmware -

Vendor Advisories

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks CVE-2020-29374 Jann Horn of Google reported a flaw in Linux's virtual memory management A parent and child process initially share all their memory, but when either writes to a shared page, ...
Synopsis Moderate: kernel security, bug fix, and enhancement update Type/Severity Security Advisory: Moderate Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 9Red Hat Product Security has rated th ...
Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 86 Extended Update SupportRed Hat Product Securit ...
Synopsis Moderate: Logging Subsystem 555 - Red Hat OpenShift security update Type/Severity Security Advisory: Moderate Topic Logging Subsystem 555 - Red Hat OpenShiftRed Hat Product Security has rated this update as having a security impact of Moderate A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severi ...
Synopsis Important: Red Hat Advanced Cluster Management 263 security update Type/Severity Security Advisory: Important Topic Red Hat Advanced Cluster Management for Kubernetes 263 GeneralAvailability release images, which provide security updates, fix bugs, and update container imagesRed Hat Product Security has rated this update as havi ...
Synopsis Moderate: kernel-rt security and bug fix update Type/Severity Security Advisory: Moderate Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 9Red Hat Product Security has rated this updat ...
Synopsis Moderate: kernel-rt security and bug fix update Type/Severity Security Advisory: Moderate Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this updat ...
Synopsis Moderate: Openshift Logging 5314 bug fix release and security update Type/Severity Security Advisory: Moderate Topic Openshift Logging Bug Fix Release (5314)Red Hat Product Security has rated this update as having a security impact of Moderate A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severi ...
Several security issues were fixed in the Linux kernel ...
Several security issues were fixed in the Linux kernel ...
Several security issues were fixed in the Linux kernel ...
Several security issues were fixed in the Linux kernel ...
Several security issues were fixed in the Linux kernel ...
A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if unbind the driver) (CVE-2020-27820) A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was ...
A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if unbind the driver) (CVE-2020-27820) A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was ...
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 cras ...
A use after free vulnerability has been found in sco_conn_del() in the Bluetooth stack of the Linux kernel, similar to CVE-2021-3573 A local attacker with CAP_NET_ADMIN privilege could exploit it to execute arbitrary code ...