CVE•Published 2021-11-02•1 article on news•6 live references•NVD data
CVE-2021-43267
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
9.8
CRITICAL
EPSS percentile
99
Exploit Prediction Scoring System · top 1% of all CVEs
Description
An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.
Timeline
Published 2021-11-02
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2021-43267Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-43267Censys host search filtered to this CVE id.
grep.app
CVE-2021-43267Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-43267GitHub code search for direct mentions.
Google dork
"CVE-2021-43267" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (5)
CVE-2021-432675 repos
xairy/linux-kernel-exploitationunknown
A collection of links related to Linux kernel security and exploitation
bsauce/kernel-exploit-factoryC
Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore.
bsauce/kernel-security-learningC
Anything about kernel security. CTF kernel pwn, kernel exploit, kernel fuzz and kernel defense paper, kernel debugging technique, kernel CVE debug.
hardenedvault/vedC
Vault Exploit Defense
Qian-YM/Vulnerability-AssessmentC