MEDIUM
kernel: local denial of service in keyctl_join_session_keyring
Published Jan 21, 2009
4.9
MEDIUMCVSS 2.0
EPSS 0.41%
Description
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."
Affected products
No data.
OR
- ≤ 2.6.28.1
- 2.2.27
- 2.4.36
- 2.4.36.1
- 2.4.36.2
- 2.4.36.3
- 2.4.36.4
- 2.4.36.5
- 2.4.36.6
- 2.6
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.19.4
- 2.6.19.5
- 2.6.19.6
- 2.6.19.7
- 2.6.20.16
- 2.6.20.17
- 2.6.20.18
- 2.6.20.19
- 2.6.20.20
- 2.6.20.21
- 2.6.21.5
- 2.6.21.6
- 2.6.21.7
- 2.6.22
- 2.6.22.1
- 2.6.22.2
- 2.6.22.8
- 2.6.22.9
- 2.6.22.10
- 2.6.22.11
- 2.6.22.12
- 2.6.22.13
- 2.6.22.14
- 2.6.22.15
- 2.6.22.17
- 2.6.22.18
- 2.6.22.19
- 2.6.22.20
- 2.6.22.21
- 2.6.22.22
- 2.6.22_rc1
- 2.6.22_rc7
- 2.6.23
- 2.6.23.8
- 2.6.23.9
- 2.6.23.10
- 2.6.23.11
- 2.6.23.12
- 2.6.23.13
- 2.6.23.15
- 2.6.23.16
- 2.6.23.17
- 2.6.23_rc1
- 2.6.24
- 2.6.24.1
- 2.6.24.2
- 2.6.24.3
- 2.6.24.4
- 2.6.24.5
- 2.6.24.6
- 2.6.24.7
- 2.6.24_rc1
- 2.6.24_rc4
- 2.6.24_rc5
- 2.6.25
- 2.6.25
- 2.6.25.1
- 2.6.25.1
- 2.6.25.2
- 2.6.25.2
- 2.6.25.3
- 2.6.25.3
- 2.6.25.4
- 2.6.25.4
- 2.6.25.5
- 2.6.25.5
- 2.6.25.6
- 2.6.25.6
- 2.6.25.7
- 2.6.25.7
- 2.6.25.8
- 2.6.25.8
- 2.6.25.9
- 2.6.25.9
- 2.6.25.10
- 2.6.25.10
- 2.6.25.11
- 2.6.25.11
- 2.6.25.12
- 2.6.25.12
- 2.6.25.13
- 2.6.25.14
- 2.6.25.15
- 2.6.25.16
- 2.6.25.17
- 2.6.26
- 2.6.26.1
- 2.6.26.2
- 2.6.26.3
- 2.6.26.4
- 2.6.26.5
- 2.6.27
- 2.6.28
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-108.el5rt
Fixed · RHSA-2009:0360
Red Hat Enterprise Linux 4
kernel-0:2.6.9-78.0.17.EL
Fixed · RHSA-2009:0331
Red Hat Enterprise Linux 5
kernel-0:2.6.18-128.1.1.el5
Fixed · RHSA-2009:0264
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-108.el5rt | Fixed | RHSA-2009:0360 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-78.0.17.EL | Fixed | RHSA-2009:0331 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-128.1.1.el5 | Fixed | RHSA-2009:0264 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
4.9 MEDIUM NVD
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
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.41% 0.00408
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.00408
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.41% (0.00408) | 32.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00408) | 32.25th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00048) | 11.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
Weaknesses (1)
References (24)
- http://git2.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0d54ee1c7850a954026deec4cd4885f331da35cc x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00003.html vendor-advisoryx_refsource_SUSE
- http://osvdb.org/51501 vdb-entryx_refsource_OSVDB
- http://rhn.redhat.com/errata/RHSA-2009-0264.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/33858 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34252 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34394 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34502 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34762 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34981 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35011 third-party-advisoryx_refsource_SECUNIA
- http://support.avaya.com/elmodocs2/security/ASA-2009-114.htm x_refsource_CONFIRM
- http://www.debian.org/security/2009/dsa-1749 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2009/dsa-1787 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2009/dsa-1794 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2009/01/19/4 mailing-listx_refsource_MLIST
- http://www.redhat.com/support/errata/RHSA-2009-0331.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2009-0360.html vendor-advisoryx_refsource_REDHAT
- http://www.ubuntu.com/usn/usn-751-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2009-0031 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=480592 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-0031
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11386 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2009-0031
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jan 21, 2009
Updated Aug 7, 2024
Reserved Dec 15, 2008
Link CVE-2009-0031
CISA Vulnrichment
Updated n/a