Loading vulnerability…
CVE-2022-2078 is a classic buffer overflow in the Linux kernel Netfilter/nftables code, specifically nft_set_desc_concat_parse(). Insufficient bounds checking while parsing a concatenated nftables set descriptor permits an attacker to overflow a kernel buffer. CVE-2022-1972 is a duplicate identifier for the same vulnerability.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a proof-of-concept (PoC) exploit for CVE-2022-2078, a vulnerability in the Linux kernel's netfilter (nftables) subsystem. The repository contains 7 files: a Makefile for building the exploit, a README.md with usage and output example, two shell scripts (boot.sh and dbg_boot.sh) for setting up a test environment, and three C source files (helper.c, helper.h, poc.c). The main exploit logic resides in poc.c, which sets up user and network namespaces, remaps user/group IDs, and then uses crafted netlink messages (with the help of helper.c) to interact with the kernel's netfilter subsystem. The exploit attempts to leak a kernel pointer by abusing the nftables set API, which is demonstrated by the output in the README. The exploit is local (not remote), requires the ability to create user and network namespaces, and is intended to demonstrate the information leak (kernel address) that could be used for further exploitation. No hardcoded IPs, URLs, or network endpoints are present; the only fingerprintable endpoints are the /proc/self/* files used for namespace setup.
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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel buffer overflow in nft_set_desc_concat_parse().
Linux kernel nftables set-description parser buffer-overflow vulnerability.
Linux kernel nftables buffer overflow in nft_set_desc_concat_parse().
A buffer-overflow vulnerability in the Linux kernel nft_set_desc_concat_parse() function, addressed by the Red Hat kernel-rt update.
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.