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CVE-2024-35896 is an out-of-bounds read in the Linux kernel Netfilter IPv4 iptables control path. The affected handling of Netfilter setsockopt requests did not validate the user-supplied optlen against the length expected by the requested operation before copying from the socket-option buffer. A malformed length can cause do_replace, reached through do_ipt_set_ctl and nf_setsockopt, to read beyond the supplied buffer. The issue was exposed after changes to BPF cgroup setsockopt processing caused option data to be copied into a smaller kernel allocation.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel netfilter user-input length-validation flaw.
Linux kernel Netfilter input-validation flaw involving validation of expected input length.
Linux kernel Netfilter input-validation flaw involving expected input length.
Linux kernel Netfilter user-input length-validation flaw.
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.