CVE-2024-0607

Kernel: nf_tables: pointer math issue in nft_byteorder_eval()

State
Published
Severity
6.6 Medium
Published
Jan 18, 2024
Updated
Nov 20, 2025
Reserved
Jan 16, 2024

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Description

A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval() function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local user to cause a denial of service or potentially break NetFilter functionality.

Scores

CVSSScoreVectorSource
3.16.6 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hredhat

Weaknesses

  • CWE-229 Improper Handling of Values

Affected Products

ProductVersions
kernel
  • before 6.7-rc2Affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 8Red Hat
          Red Hat Enterprise Linux 8Red Hat
            Red Hat Enterprise Linux 9Red Hat
              Red Hat Enterprise Linux 9Red Hat

                References

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