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CVE-2021-4095

CVSS v3.1 5.5 (Medium)
55% Progress
CVSS v2.0 1.9 (Low)
19% Progress
EPSS 0.04 % (5th)
0.04% Progress
Affected Products 2
Advisories 5
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A NULL pointer dereference was found in the Linux kernel's KVM when dirty ring logging is enabled without an active vCPU context. An unprivileged local attacker on the host may use this flaw to cause a kernel oops condition and thus a denial of service by issuing a KVM_XEN_HVM_SET_ATTR ioctl. This flaw affects Linux kernel versions prior to 5.17-rc1.

Weaknesses
CWE-476
NULL Pointer Dereference
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2022-03-10 17:44:53
(2 years ago)
Updated Date
2023-11-07 03:40:10
(10 months ago)

Affected Products

Fedoraproject

Linux

Configuration #1

    CPE23 From Up To
  Linux Kernel 5.16 and prior versions cpe:2.3:o:linux:linux_kernel <= 5.16

Configuration #2

    CPE23 From Up To
  Fedoraproject Fedora 34 cpe:2.3:o:fedoraproject:fedora:34
  Fedoraproject Fedora 35 cpe:2.3:o:fedoraproject:fedora:35