kernel: denial of service due to memory leak in add_key()
Published Aug 31, 2015
4.9
MEDIUMCVSS 2.0
EPSS 0.48%
Description
Memory leak in the __key_link_end function in security/keys/keyring.c in the Linux kernel before 4.1.4 allows local users to cause a denial of service (memory consumption) via many add_key system calls that refer to existing keys.
Affected products
No data.
- ≤ 4.1.3
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-229.14.1.ael7b
Fixed · RHSA-2015:1778
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-229.14.1.rt56.141.13.el7_1
Fixed · RHSA-2015:1788
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-229.rt56.161.el6rt
Fixed · RHSA-2015:1787
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-229.14.1.ael7b | Fixed | RHSA-2015:1778 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-229.14.1.rt56.141.13.el7_1 | Fixed | RHSA-2015:1788 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-229.rt56.161.el6rt | Fixed | RHSA-2015:1787 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6.
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:L/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 1, 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 1, 2026 | 0.48% (0.00480) | 39.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00480) | 37.45th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00084) | 22.14th | 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 (19)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4da5dd1f99fe9c59f1709fb43e818b18ad20e0 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2015-1778.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1787.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3329 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.4 x_refsource_CONFIRMVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/07/27/7 mailing-listx_refsource_MLIST
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/76050 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2687-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2688-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2689-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2690-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2691-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-1333 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1245658 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/ca4da5dd1f99fe9c59f1709fb43e818b18ad20e0 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-1333
- https://support.f5.com/csp/article/K05211147 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-1333
Change history (0)
No recorded changes yet.