CVE-2021-47336

High

Description

In the Linux kernel, the following vulnerability has been resolved: smackfs: restrict bytes count in smk_set_cipso() Oops, I failed to update subject line. From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001 Date: Mon, 12 Apr 2021 22:25:06 +0900 Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso() Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write functions") missed that count > SMK_CIPSOMAX check applies to only format == SMK_FIXED24_FMT case.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedMay 21, 2024
First seenMay 21, 2024

How to fix

Update
  • linux linux_kernel4.9.276, 4.14.240, 4.19.198, 5.4.133, 5.10.51, 5.12.18, 5.13.3 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernelv < 4.9.276, 4.10 ≤ v < 4.14.240, 4.15 ≤ v < 4.19.198, 4.20 ≤ v < 5.4.133, 5.5 ≤ v < 5.10.51, 5.11 ≤ v < 5.12.18, 5.13 ≤ v < 5.13.34.9.276, 4.14.240, 4.19.198, 5.4.133, 5.10.51, 5.12.18, 5.13.3

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2021-47336 · Linux Kernel · Dark Radar