CVE-2021-38209
Low
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.
SeverityLow
CVSS3.3
Exploit probability—
Product
Linux Kernel
PublishedAug 8, 2021
First seenAug 8, 2021
How to fix
Update
- linux linux_kernel5.12.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.12.2 | 5.12.2 |
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