CVE-2021-38209

Summary

CVECVE-2021-38209
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-08 20:15:00 UTC
Updated2021-08-12 22:49:00 UTC
Descriptionnet/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.

Risk And Classification

Problem Types: CWE-203

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
netfilter: conntrack: Make global sysctls readonly in non-init netns · torvalds/linux@2671fa4 · GitHub MISC github.com
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.2 MISC cdn.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180014 Debian Security Update for linux (CVE-2021-38209)
  • 671219 EulerOS Security Update for kernel (EulerOS-SA-2022-1030)
  • 671225 EulerOS Security Update for kernel (EulerOS-SA-2022-1010)
  • 671282 EulerOS Security Update for kernel (EulerOS-SA-2022-1255)
  • 671436 EulerOS Security Update for kernel (EulerOS-SA-2022-1352)
  • 671703 EulerOS Security Update for kernel (EulerOS-SA-2022-1735)
  • 751160 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3179-1)
  • 751170 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3205-1)
  • 900294 CBL-Mariner Linux Security Update for kernel 5.10.52.1
  • 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
  • 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
  • 901003 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6593-1)
  • 903006 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5084)
  • 905969 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5084-1)
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