kernel: Missing check for permissions when setting ACL
Published Jun 29, 2016
7.8
HIGHCVSS 3.0
EPSS 0.36%
Description
nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.
Affected products
No data.
- ≤ 4.6.3
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 any of Red Hat's shipping products.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:C/I:N/A:N
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.36% (0.00364) | 27.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00367) | 28.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.01% (0.00015) | 1.67th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (14)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4 x_refsource_CONFIRMVendor Advisory
- http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2016/06/25/2 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/91456 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-3053-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3070-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3070-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3070-3 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3070-4 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2016-1237 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1350845 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-1237
- https://www.cve.org/CVERecord?id=CVE-2016-1237
Change history (0)
No recorded changes yet.