kernel: Info leak in kernel_waitid()
Published Oct 1, 2017
5.5
MEDIUMCVSS 3.0
EPSS 1.01%
Description
The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call.
Affected products
No data.
- ≤ 4.13.4
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-alt
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-alt | 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 versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2 as the code with the flaw is not present in the products listed.
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
AV:L/AC:L/Au:N/C:P/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.01% (0.01008) | 61.71th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.01% (0.01008) | 61.53th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00042) | 5.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01963) | 78.58th | v2 (v2022.01.01) |
| Mar 12, 2022 | 1.96% (0.01963) | 56.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.67% (0.00666) | 18.77th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.67% (0.00666) | 0.00th | v1 |
References (9)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c85501f2fabcfc4fc6ed976543d252c4eaf4be9 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-14954 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1497745 Issue Tracking
- https://github.com/torvalds/linux/commit/6c85501f2fabcfc4fc6ed976543d252c4eaf4be9 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://grsecurity.net/~spender/exploits/wait_for_kaslr_to_be_effective.c x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-14954
- https://twitter.com/_argp/status/914021130712870912 x_refsource_MISCThird Party Advisory
- https://twitter.com/grsecurity/status/914079864478666753 x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-14954
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c85501f2fabcfc4fc6ed976543d252c4eaf4be9 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-14954 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1497745 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/6c85501f2fabcfc4fc6ed976543d252c4eaf4be9 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://grsecurity.net/~spender/exploits/wait_for_kaslr_to_be_effective.c | x_refsource_MISCThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-14954 | ||
| https://twitter.com/_argp/status/914021130712870912 | x_refsource_MISCThird Party Advisory | |
| https://twitter.com/grsecurity/status/914079864478666753 | x_refsource_MISCThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-14954 |
Change history (0)
No recorded changes yet.