{"cve":"CVE-2009-1338","nvd":{"published":"2009-04-22T15:30:00.217","modified":"2026-06-16T23:07:04.150","status":"Modified","description":"The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d25141a818383b3c3b09f065698c544a7a0ec6e7","http://lkml.org/lkml/2008/7/23/148","http://secunia.com/advisories/34981","http://secunia.com/advisories/35120","http://secunia.com/advisories/35121"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1338","score":0.00392,"percentile":0.33327,"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."]}