Kernel: keys: race condition in install_user_keyrings()
Published Mar 22, 2013
4.7
MEDIUMCVSS 2.0
EPSS 0.29%
Description
Race condition in the install_user_keyrings function in security/keys/process_keys.c in the Linux kernel before 3.8.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) via crafted keyctl system calls that trigger keyring operations in simultaneous threads.
Affected products
No data.
- ≤ 3.8.2
- 3.8.0
- 3.8.1
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-358.6.1.el6
Fixed · RHSA-2013:0744
Red Hat Enterprise MRG 2
kernel-rt-0:3.6.11.2-rt33.39.el6rt
Fixed · RHSA-2013:0829
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-358.6.1.el6 | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.6.11.2-rt33.39.el6rt | Fixed | RHSA-2013:0829 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5. This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise MRG 2 may address this issue.
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.
AV:L/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
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 | 0.29% (0.00287) | 19.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.29% (0.00287) | 20.21th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00068) | 18.12th | 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) |
References (21)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0da9dfdd2cd9889201bc6f6f43580c99165cd087 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2013-0744.html vendor-advisoryx_refsource_REDHAT
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.3 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2013/03/07/1 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1787-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1788-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1792-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1793-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1794-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1795-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1796-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1797-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1798-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-1792 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=916646 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/0da9dfdd2cd9889201bc6f6f43580c99165cd087 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-1792
- https://www.cve.org/CVERecord?id=CVE-2013-1792
Change history (0)
No recorded changes yet.