CVE-2021-38209
3.3 LOWnet/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because thes...
Published: 2021-08-08 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 3.3 LOW
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CWE
- CWE-203
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38209
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.2
- [Patch]https://github.com/torvalds/linux/commit/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.2
- [Patch]https://github.com/torvalds/linux/commit/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6
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