CVE-2021-38209

 

Published at: - 08-08-2021 10:15

Last modified: - 26-10-2022 01:44

Total changes: - 5

Description

net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

 

Verification logic

 

Reference

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.2
• https://github.com/torvalds/linux/commit/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6

 

Keywords

NVD

 

CVE-2021-38209

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures