CVE-2021-3635

MEDIUM

Linux Kernel < 5.5-rc7 - Denial of Service via Netfilter Netflow Commands

Title source: llm
STIX 2.1

Description

A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.

References (1)

Core 1
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1976946

Scores

CVSS v3 4.4
EPSS 0.0014
EPSS Percentile 34.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-119
Status published
Products (6)
fedoraproject/fedora 34
linux/linux_kernel 5.5 rc1 (6 CPE variants)
linux/linux_kernel < 5.5
redhat/enterprise_linux 6.0
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
Published Aug 13, 2021
Tracked Since Feb 18, 2026