kernel: integer overflow in static int check_alu_op function in bpf/verifier.c
Published Dec 23, 2017
7.8
HIGHCVSS 3.0
EPSS 0.41%
Description
kernel/bpf/verifier.c in the Linux kernel 4.9.x through 4.9.71 does not check the relationship between pointer values and the BPF stack, which allows local users to cause a denial of service (integer overflow or invalid memory access) or possibly have unspecified other impact.
Affected products
No data.
Configuration 1
- ≥ 4.9.0 · ≤ 4.9.71
Configuration 2
- 9.0
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
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.
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:H/PR:N/UI:N/S:U/C:L/I:L/A:H
AV:L/AC:L/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
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 | 0.41% (0.00409) | 32.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00409) | 32.34th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00086) | 22.72th | 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://www.securityfocus.com/bid/102321 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040058 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-17863 Vendor Advisory
- https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security x_refsource_MISCPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=1529123 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-17863
- https://usn.ubuntu.com/3523-3/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/usn/usn-3523-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-17863
- https://www.debian.org/security/2017/dsa-4073 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.spinics.net/lists/stable/msg206985.html x_refsource_MISCIssue TrackingPatch
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102321 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040058 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-17863 | Vendor Advisory | |
| https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security | x_refsource_MISCPatch | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1529123 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-17863 | ||
| https://usn.ubuntu.com/3523-3/ | vendor-advisoryx_refsource_UBUNTU | |
| https://usn.ubuntu.com/usn/usn-3523-2/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-17863 | ||
| https://www.debian.org/security/2017/dsa-4073 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.spinics.net/lists/stable/msg206985.html | x_refsource_MISCIssue TrackingPatch |
Change history (0)
No recorded changes yet.