CVE-2009-3624
The get_instantiation_keyring function in security/keys/keyctl.c in the KEYS subsystem in the...
CVE-2009-3624 is a medium vulnerability (CVSS 4.6) in Linux Kernel, published November 2, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. No source names a fixed version.
- Severity
- 4.6 MediumCVSS 2.0, NVD
- Exploit chance
- 0.37%EPSS, 31st percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
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.
Exploit likelihood
Affected products
What each source reports
NVD Score used
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.
- Record
CVE-2009-3624- CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2009-3624- Updated
- 2026-11-02
EUVDEUVD-2009-3605No score
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.
- Record
EUVD-2009-3605- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gx7p-6h8g-757gNo score
The get_instantiation_keyring function in security/keys/keyctl.c in the KEYS subsystem in the...
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.
- Record
GHSA-gx7p-6h8g-757g- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
marc.info?l=oss-security&m=125619420905341&w=2
ubuntu.com/usn/usn-864-1
lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=21279cfa107af07ef985539ac0de2152b9cba5f5
twitter.com/spendergrsec/statuses/4916661870
kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc5