CVE-2021-47336

HIGH

Linux Kernel < 4.9.276 - Integer Overflow in smk_set_cipso()

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.8
EPSS 0.0025
EPSS Percentile 15.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (19)
Linux/Linux < 3.5
Linux/Linux 3.5
Linux/Linux 4.14.240 - 4.14.*
Linux/Linux 4.19.198 - 4.19.*
Linux/Linux 4.9.276 - 4.9.*
Linux/Linux 5.10.51 - 5.10.*
Linux/Linux 5.12.18 - 5.12.*
Linux/Linux 5.13.3 - 5.13.*
Linux/Linux 5.14
Linux/Linux 5.4.133 - 5.4.*
... and 9 more
Published May 21, 2024
Tracked Since Feb 18, 2026