CVE-2023-6040

Summary

An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within nf_tables_newtable function enables an attacker to achieve out-of-bounds access.

Affected Software

Weaknesses

• CWE-125: CWE-125

Workarounds

Disabling unprivileged user namespaces mitigates the issue.

ADP Enrichment

CVE Program Container

Additional References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6040
• https://www.openwall.com/lists/oss-security/2024/01/12/1
• http://www.openwall.com/lists/oss-security/2024/01/12/1
• http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
• https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
• https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6040
• https://www.openwall.com/lists/oss-security/2024/01/12/1
• http://www.openwall.com/lists/oss-security/2024/01/12/1
• http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
• https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
• https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

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