{"cve":"CVE-2009-3624","nvd":{"published":"2009-11-02T15:30:00.563","modified":"2026-06-16T23:12:02.637","status":"Modified","description":"The get_instantiation_keyring function in security/keys/keyctl.c in the KEYS subsystem in the Linux kernel before 2.6.32-rc5 does not properly maintain the reference count of a keyring, which allows local users to gain privileges or cause a denial of service (OOPS) via vectors involving calls to this function without specifying a keyring by ID, as demonstrated by a series of keyctl request2 and keyctl list commands.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=21279cfa107af07ef985539ac0de2152b9cba5f5","http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html","http://marc.info/?l=oss-security&m=125619420905341&w=2","http://marc.info/?l=oss-security&m=125624091417161&w=2","http://secunia.com/advisories/37086"],"products":["linux:kernel","linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3624","score":0.00372,"percentile":0.31188,"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."]}