{"cve":"CVE-2012-4565","nvd":{"published":"2012-12-21T11:47:36.627","modified":"2026-06-16T23:45:24.550","status":"Modified","description":"The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664","http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html","http://rhn.redhat.com/errata/RHSA-2012-1580.html","http://secunia.com/advisories/51409","http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2012-4565","score":0.00486,"percentile":0.41905,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}