kernel: security/keys/big_key.c mishandles unsuccessful crypto registration
Published Nov 28, 2016
7.8
HIGHCVSS 3.1
EPSS 2.11%
Description
security/keys/big_key.c in the Linux kernel before 4.8.7 mishandles unsuccessful crypto registration in conjunction with successful key-type registration, which allows local users to cause a denial of service (NULL pointer dereference and panic) or possibly have unspecified other impact via a crafted application that uses the big_key data type.
Affected products
No data.
- ≥ 4.7 · < 4.8.7
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-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 5,6 and 7 as the code with the flaw is not present in the products listed.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:C/I:C/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 | 2.11% (0.02111) | 81.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.11% (0.02111) | 79.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.39% (0.00391) | 58.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00060) | 27.58th | v3 (v2023.03.01) |
| May 31, 2024 | 0.06% (0.00060) | 25.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00060) | 23.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (9)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7 x_refsource_CONFIRMRelease Notes
- http://www.openwall.com/lists/oss-security/2016/07/22/1 mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94546 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-9313 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1399519 Issue Tracking
- https://github.com/torvalds/linux/commit/7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-9313
- https://www.cve.org/CVERecord?id=CVE-2016-9313
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7 | x_refsource_CONFIRMRelease Notes | |
| http://www.openwall.com/lists/oss-security/2016/07/22/1 | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/94546 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-9313 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1399519 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-9313 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-9313 |
Change history (0)
No recorded changes yet.