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CVE-2023-6817 is a use-after-free vulnerability in the Linux kernel Netfilter nf_tables subsystem. The nft_pipapo_walk function fails to skip inactive elements while walking PIPAPO set elements. This permits double deactivation of an element and can result in use-after-free memory corruption.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel vulnerability in nftables pipapo set walking involving inactive elements.
A vulnerability involving inactive elements in the Linux kernel nftables PIPAPO set-walk implementation.
Linux kernel vulnerability involving inactive elements in nft_pipapo_walk.
Linux kernel nft_pipapo_walk flaw involving inactive elements.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.