Published: 08/06/2021 Updated: 12/02/2023

CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9

CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8

VMScore: 187

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

It exists that the aufs file system in the Linux kernel did not properly maintain POSIX ACL xattr data, when mounted with the non-default allow_userns option. A local attacker could possibly use this to gain elevated privileges. (CVE-2016-2854) 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.

Vulnerable Product	Search on Vulmon	Subscribe to Product
linux linux kernel
fedoraproject fedora 34
debian debian linux 9.0

Synopsis Important: kernel-rt 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-rt is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this upd ...

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 7Red Hat Product Security has rated this update as ...

Synopsis Moderate: Red Hat Advanced Cluster Management 2211 security updates and bug fixes Type/Severity Security Advisory: Moderate Topic Red Hat Advanced Cluster Management for Kubernetes 2211 General Availability release images, which provide one or more container updates and bug fixesRed Hat Product Security has rated this update as ...

Several security issues were fixed in the Linux kernel ...

A flaw was found in the Linux kernel The Bluetooth subsystem's HCI device initialization fails which can lead to unexpected results, like double-free memory corruption vulnerability The highest threat from this vulnerability is to system availability ...

A security issue has been found in Bluetooth subsystem of the Linux kernel HCI device initialization failure can lead to unexpected results, like double-free memory corruption ...

A flaw was found in the Linux kernels implementation of wifi fragmentation handling An attacker with the ability to transmit within the wireless transmission range of an access point can abuse a flaw where previous contents of wifi fragments can be unintentionally transmitted to another device (CVE-2020-24586) A flaw was found in the Linux kernel ...

A vulnerability was found in the bluez, where Passkey Entry protocol used in Secure Simple Pairing (SSP), Secure Connections (SC) and LE Secure Connections (LESC) of the Bluetooth Core Specification is vulnerable to an impersonation attack where an active attacker can impersonate the initiating device without any previous knowledge (CVE-2020-26558 ...

A flaw was found in the Linux kernels implementation of wifi fragmentation handling An attacker with the ability to transmit within the wireless transmission range of an access point can abuse a flaw where previous contents of wifi fragments can be unintentionally transmitted to another device (CVE-2020-24586) A flaw was found in the Linux kernel ...

CWE-415 https://bugzilla.redhat.com/show_bug.cgi?id=1964139 http://www.openwall.com/lists/oss-security/2021/06/01/2 http://www.openwall.com/lists/oss-security/2021/05/25/1 https://www.openwall.com/lists/oss-security/2021/05/25/1 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://nvd.nist.gov https://access.redhat.com/errata/RHSA-2022:0622 https://ubuntu.com/security/notices/USN-5343-1

CVE-2021-3564

Vulnerability Summary

Vulnerability Trend

Vendor Advisories

References

Vulmon Search

About

Products

Connect