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Medium severity4.4NVD Advisory· Published Aug 13, 2021· Updated Jun 17, 2026

CVE-2021-3635

CVE-2021-3635

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

14
  • Linux/Linux kerneldescription
  • Linux/Kernel8 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <5.5
    • cpe:2.3:o:linux:linux_kernel:5.5:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:5.5:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:5.5:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:5.5:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:5.5:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:5.5:rc6:*:*:*:*:*:*
    • (no CPE)range: <5.5-rc7
  • Red Hat/Enterprise Linux Server3 versions
    cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
    • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
    • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • Fedoraproject/Fedora
    cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • osv-coords
    pkg:rpm/almalinux/kernel-tools-libs-devel
    Range: < 4.18.0-348.el8

Patches

Vulnerability mechanics

References

1

News mentions

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