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CVE-2023-35001 is a stack out-of-bounds read in the Linux kernel Netfilter nftables implementation. The nft_byteorder_eval function insufficiently validates virtual-machine register contents and data alignment during byte-order evaluation, allowing an out-of-bounds memory access.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a local privilege escalation exploit for CVE-2023-35001, a vulnerability in nftables as used in Ubuntu 22.10 (kernel 5.19.0-35-generic). The exploit was used at Pwn2Own Vancouver 2023. The structure includes a Go-based main exploit (main.go), a C wrapper (src/wrapper.c) for namespace setup, and build files (Makefile, go.mod, go.sum). The exploit works by creating new user and network namespaces, leaking kernel and module base addresses, crafting a kernel ROP chain, and executing custom shellcode to escalate privileges to root. The exploit communicates locally via UDP (127.0.0.1:1337) to trigger the vulnerability and, upon success, spawns a root shell (/bin/sh). The wrapper binary is used to enter the required namespaces before running the main exploit. The exploit is operational and targets a specific kernel version on Ubuntu. No remote or network attack vector is present; exploitation requires local code execution.
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28 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A stack out-of-bounds read vulnerability in the Linux kernel nf_tables nft_byteorder_eval function.
Linux kernel nf_tables stack out-of-bounds read in nft_byteorder_eval().
Stack out-of-bounds read flaw in the Linux kernel nf_tables nft_byteorder_eval() function.
Stack out-of-bounds read vulnerability in the Linux kernel nf_tables nft_byteorder_eval() function.
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.