CVE-2021-4148 — Improper Validation of Integrity Check Value in Kernel

CWE-354 — Improper Validation of Integrity Check Value6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxFedoraproject Fedora+1 more
Timeline
PublishedMar 23
Latest updateMar 24

Description

A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages5 packages

▶NVDlinux/linux_kernel< 5.14.16
▶Debianlinux/linux_kernel< 5.10.84-1+3
▶CVEListV5linux/linux_kernelkernel 5.14.16
▶debiandebian/linux< linux 5.14.16-1 (bookworm)

Also affects: Fedora 35

Patches

Patch: lkml.org ↗Patch: lkml.org ↗Patch: lkml.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-42rf-8fff-r463: A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer↗2022-03-24
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OSV
CVE-2021-4148: A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer↗2022-03-23
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📋Vendor Advisories

3
Microsoft
A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of servic↗2022-03-08
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Red Hat
kernel: Improper implementation of block_invalidatepage() allows users to crash the kernel↗2021-09-13
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Debian
CVE-2021-4148: linux - A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffe...↗2021
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