Local denial of service via misindexed 64-bit writes
Published Jan 18, 2024 · Updated Nov 20, 2025
Improper value handling in Linux kernel Netfilter before 6.7-rc2 allows local users to crash the system or disrupt packet filtering. In nft_byteorder_eval(), 64-bit byte-order results are stored through u32-indexed dst elements, so each iteration advances four bytes and overwrites part of the prior result. Low-privileged local access is required; triggering the affected multi-element conversion can crash the kernel or corrupt Netfilter register data and disrupt filtering.
Summary
What happened
Improper value handling in Linux kernel Netfilter before 6.7-rc2 allows local users to crash the system or disrupt packet filtering. In nft_byteorder_eval(), 64-bit byte-order results are stored through u32-indexed dst elements, so each iteration advances four bytes and overwrites part of the prior result. Low-privileged local access is required; triggering the affected multi-element conversion can crash the kernel or corrupt Netfilter register data and disrupt filtering.
The record
- CVE
- CVE-2024-0607
- Published
- Jan 18, 2024
- Updated
- Nov 20, 2025
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8
- Classifications
- CWE-229, T1499.004, T1562.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 18, 2024CVE publishedPublication date reported by the CVE source.
- Nov 20, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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