kernel: Integer overflow in events/core.c:perf_cpu_time_max_percent_handler() can allow for denial of service
Published Mar 31, 2018
7.8
HIGHCVSS 3.0
EPSS 0.39%
Description
The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.
Affected products
No data.
- < 4.11
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 Linux 8
kernel
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 Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
AV:L/AC:L/Au:N/C:P/I:P/A:P
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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00388) | 30.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00402) | 31.71th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00033) | 6.23th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.10% (0.01105) | 29.08th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.10% (0.01105) | 0.00th | v1 |
References (11)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172e3d x_refsource_MISCPatchVendor Advisory
- http://www.securityfocus.com/bid/103607 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2017-18255 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1563069 Issue Tracking
- https://github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-18255
- https://usn.ubuntu.com/3696-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3696-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3754-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-18255
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172e3d | x_refsource_MISCPatchVendor Advisory | |
| http://www.securityfocus.com/bid/103607 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2017-18255 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1563069 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d | x_refsource_MISCPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18255 | ||
| https://usn.ubuntu.com/3696-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://usn.ubuntu.com/3696-2/ | vendor-advisoryx_refsource_UBUNTU | |
| https://usn.ubuntu.com/3754-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-18255 |
Change history (0)
No recorded changes yet.