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.
Published: 2009-11-02
Score: 4.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2009-3605 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.
Ubuntu USN Ubuntu USN USN-864-1 Linux kernel vulnerabilities
History

Wed, 28 May 2025 14:45:00 +0000

Type Values Removed Values Added
References

Thu, 22 May 2025 04:30:00 +0000

Type Values Removed Values Added
References

Subscriptions

Linux Kernel Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T06:38:28.323Z

Reserved: 2009-10-09T00:00:00.000Z

Link: CVE-2009-3624

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-11-02T15:30:00.563

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-3624

cve-icon Redhat

Severity : Important

Publid Date: 2009-10-15T00:00:00Z

Links: CVE-2009-3624 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses