Vulnerability Monitor

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CVE-2009-0031

Memory leak in the keyctl_join_session_keyring function (security/keys/keyctl.c) in Linux kernel 2.6.29-rc2 and earlier allows local users to cause a denial of service (kernel memory consumption) via unknown vectors related to a "missing kfree."

Security Impact Summary

CVE-2009-0031 is a security vulnerability that . Impacting 1 product from linux organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-01-21T02:30:00.313

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.9 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Primary
CWE-399

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 2.6.28.1	Yes
Operating System	linux	linux_kernel	2.2.27	Yes
Operating System	linux	linux_kernel	2.4.36	Yes
Operating System	linux	linux_kernel	2.4.36.1	Yes
Operating System	linux	linux_kernel	2.4.36.2	Yes
Operating System	linux	linux_kernel	2.4.36.3	Yes
Operating System	linux	linux_kernel	2.4.36.4	Yes
Operating System	linux	linux_kernel	2.4.36.5	Yes
Operating System	linux	linux_kernel	2.4.36.6	Yes
Operating System	linux	linux_kernel	2.6	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.18	Yes
Operating System	linux	linux_kernel	2.6.19.4	Yes
Operating System	linux	linux_kernel	2.6.19.5	Yes
Operating System	linux	linux_kernel	2.6.19.6	Yes
Operating System	linux	linux_kernel	2.6.19.7	Yes
Operating System	linux	linux_kernel	2.6.20.16	Yes
Operating System	linux	linux_kernel	2.6.20.17	Yes
Operating System	linux	linux_kernel	2.6.20.18	Yes
Operating System	linux	linux_kernel	2.6.20.19	Yes
Operating System	linux	linux_kernel	2.6.20.20	Yes
Operating System	linux	linux_kernel	2.6.20.21	Yes
Operating System	linux	linux_kernel	2.6.21.5	Yes
Operating System	linux	linux_kernel	2.6.21.6	Yes
Operating System	linux	linux_kernel	2.6.21.7	Yes
Operating System	linux	linux_kernel	2.6.22	Yes
Operating System	linux	linux_kernel	2.6.22.1	Yes
Operating System	linux	linux_kernel	2.6.22.2	Yes
Operating System	linux	linux_kernel	2.6.22.8	Yes
Operating System	linux	linux_kernel	2.6.22.9	Yes
Operating System	linux	linux_kernel	2.6.22.10	Yes
Operating System	linux	linux_kernel	2.6.22.11	Yes
Operating System	linux	linux_kernel	2.6.22.12	Yes
Operating System	linux	linux_kernel	2.6.22.13	Yes
Operating System	linux	linux_kernel	2.6.22.14	Yes
Operating System	linux	linux_kernel	2.6.22.15	Yes
Operating System	linux	linux_kernel	2.6.22.17	Yes
Operating System	linux	linux_kernel	2.6.22.18	Yes
Operating System	linux	linux_kernel	2.6.22.19	Yes
Operating System	linux	linux_kernel	2.6.22.20	Yes
Operating System	linux	linux_kernel	2.6.22.21	Yes
Operating System	linux	linux_kernel	2.6.22.22	Yes
Operating System	linux	linux_kernel	2.6.22_rc1	Yes
Operating System	linux	linux_kernel	2.6.22_rc7	Yes
Operating System	linux	linux_kernel	2.6.23	Yes
Operating System	linux	linux_kernel	2.6.23.8	Yes
Operating System	linux	linux_kernel	2.6.23.9	Yes
Operating System	linux	linux_kernel	2.6.23.10	Yes
Operating System	linux	linux_kernel	2.6.23.11	Yes
Operating System	linux	linux_kernel	2.6.23.12	Yes
Operating System	linux	linux_kernel	2.6.23.13	Yes
Operating System	linux	linux_kernel	2.6.23.15	Yes
Operating System	linux	linux_kernel	2.6.23.16	Yes
Operating System	linux	linux_kernel	2.6.23.17	Yes
Operating System	linux	linux_kernel	2.6.23_rc1	Yes
Operating System	linux	linux_kernel	2.6.24	Yes
Operating System	linux	linux_kernel	2.6.24.1	Yes
Operating System	linux	linux_kernel	2.6.24.2	Yes
Operating System	linux	linux_kernel	2.6.24.3	Yes
Operating System	linux	linux_kernel	2.6.24.4	Yes
Operating System	linux	linux_kernel	2.6.24.5	Yes
Operating System	linux	linux_kernel	2.6.24.6	Yes
Operating System	linux	linux_kernel	2.6.24.7	Yes
Operating System	linux	linux_kernel	2.6.24_rc1	Yes
Operating System	linux	linux_kernel	2.6.24_rc4	Yes
Operating System	linux	linux_kernel	2.6.24_rc5	Yes
Operating System	linux	linux_kernel	2.6.25	Yes
Operating System	linux	linux_kernel	2.6.25	Yes
Operating System	linux	linux_kernel	2.6.25.1	Yes
Operating System	linux	linux_kernel	2.6.25.1	Yes
Operating System	linux	linux_kernel	2.6.25.2	Yes
Operating System	linux	linux_kernel	2.6.25.2	Yes
Operating System	linux	linux_kernel	2.6.25.3	Yes
Operating System	linux	linux_kernel	2.6.25.3	Yes
Operating System	linux	linux_kernel	2.6.25.4	Yes
Operating System	linux	linux_kernel	2.6.25.4	Yes
Operating System	linux	linux_kernel	2.6.25.5	Yes
Operating System	linux	linux_kernel	2.6.25.5	Yes
Operating System	linux	linux_kernel	2.6.25.6	Yes
Operating System	linux	linux_kernel	2.6.25.6	Yes
Operating System	linux	linux_kernel	2.6.25.7	Yes
Operating System	linux	linux_kernel	2.6.25.7	Yes
Operating System	linux	linux_kernel	2.6.25.8	Yes
Operating System	linux	linux_kernel	2.6.25.8	Yes
Operating System	linux	linux_kernel	2.6.25.9	Yes
Operating System	linux	linux_kernel	2.6.25.9	Yes
Operating System	linux	linux_kernel	2.6.25.10	Yes
Operating System	linux	linux_kernel	2.6.25.10	Yes
Operating System	linux	linux_kernel	2.6.25.11	Yes
Operating System	linux	linux_kernel	2.6.25.11	Yes
Operating System	linux	linux_kernel	2.6.25.12	Yes
Operating System	linux	linux_kernel	2.6.25.12	Yes
Operating System	linux	linux_kernel	2.6.25.13	Yes
Operating System	linux	linux_kernel	2.6.25.14	Yes
Operating System	linux	linux_kernel	2.6.25.15	Yes
Operating System	linux	linux_kernel	2.6.25.16	Yes
Operating System	linux	linux_kernel	2.6.25.17	Yes
Operating System	linux	linux_kernel	2.6.26	Yes
Operating System	linux	linux_kernel	2.6.26.1	Yes
Operating System	linux	linux_kernel	2.6.26.2	Yes
Operating System	linux	linux_kernel	2.6.26.3	Yes
Operating System	linux	linux_kernel	2.6.26.4	Yes
Operating System	linux	linux_kernel	2.6.26.5	Yes
Operating System	linux	linux_kernel	2.6.27	Yes
Operating System	linux	linux_kernel	2.6.28	Yes

References

http://git2.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0d54ee1c7850a954026deec4cd4885f331da35cc ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00003.html ([email protected])
http://osvdb.org/51501 ([email protected])
http://rhn.redhat.com/errata/RHSA-2009-0264.html ([email protected])
http://secunia.com/advisories/33858 ([email protected])
http://secunia.com/advisories/34252 ([email protected])
http://secunia.com/advisories/34394 ([email protected])
http://secunia.com/advisories/34502 ([email protected])
http://secunia.com/advisories/34762 ([email protected])
http://secunia.com/advisories/34981 ([email protected])
http://secunia.com/advisories/35011 ([email protected])
http://support.avaya.com/elmodocs2/security/ASA-2009-114.htm ([email protected])
http://www.debian.org/security/2009/dsa-1749 ([email protected])
http://www.debian.org/security/2009/dsa-1787 ([email protected])
http://www.debian.org/security/2009/dsa-1794 ([email protected])
http://www.openwall.com/lists/oss-security/2009/01/19/4 ([email protected])
http://www.redhat.com/support/errata/RHSA-2009-0331.html ([email protected])
http://www.redhat.com/support/errata/RHSA-2009-0360.html ([email protected])
http://www.ubuntu.com/usn/usn-751-1 ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11386 ([email protected])
http://git2.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0d54ee1c7850a954026deec4cd4885f331da35cc (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00003.html (af854a3a-2127-422b-91ae-364da2661108)
http://osvdb.org/51501 (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2009-0264.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/33858 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34252 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34394 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34502 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34762 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34981 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/35011 (af854a3a-2127-422b-91ae-364da2661108)
http://support.avaya.com/elmodocs2/security/ASA-2009-114.htm (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2009/dsa-1749 (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2009/dsa-1787 (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2009/dsa-1794 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2009/01/19/4 (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2009-0331.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2009-0360.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/usn-751-1 (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11386 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.