kernel: memory corruption caused by BPF verifier bugs can allow for arbitrary code execution
Published Dec 22, 2017
7.8
HIGHCVSS 3.1
EPSS 30.05%
Description
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
Affected products
No data.
Configuration 1
- ≥ 4.9 · < 4.9.72
- ≥ 4.10 · < 4.14.9
Configuration 2
- 9.0
Configuration 3
- 14.04
- 16.04
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
kernel-rt
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 | kernel-rt | 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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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: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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 30.05% (0.30052) | 98.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 30.05% (0.30052) | 97.97th | v5 (v2026.06.15) |
| May 22, 2026 | 84.20% (0.84201) | 99.32th | v4 (v2025.03.14) |
| Jan 8, 2026 | 82.99% (0.82988) | 99.22th | v4 (v2025.03.14) |
| Dec 26, 2025 | 86.55% (0.86553) | 99.38th | v4 (v2025.03.14) |
| Dec 1, 2025 | 82.99% (0.82988) | 99.22th | v4 (v2025.03.14) |
| Sep 7, 2025 | 81.52% (0.81517) | 99.14th | v4 (v2025.03.14) |
| Aug 9, 2025 | 82.62% (0.82624) | 99.18th | v4 (v2025.03.14) |
| Jul 6, 2025 | 84.27% (0.84267) | 99.25th | v4 (v2025.03.14) |
| Apr 15, 2025 | 83.02% (0.83021) | 99.18th | v4 (v2025.03.14) |
| Mar 17, 2025 | 84.51% (0.84506) | 99.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00048) | 19.97th | v3 (v2023.03.01) |
| May 15, 2024 | 0.05% (0.00048) | 17.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00048) | 15.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.20% (0.02195) | 81.07th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.20% (0.02195) | 79.25th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.20% (0.02195) | 57.97th | v2 (v2022.01.01) |
| Feb 3, 2022 | 36.27% (0.36269) | 98.03th | v1 |
| Sep 16, 2021 | 36.27% (0.36269) | 98.98th | v1 |
| Sep 14, 2021 | 7.15% (0.07151) | 91.42th | v1 |
| Sep 1, 2021 | 36.27% (0.36269) | 98.99th | v1 |
| Apr 14, 2021 | 36.27% (0.36269) | 0.00th | v1 |
References (18)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f x_refsource_MISCVendor Advisory
- http://openwall.com/lists/oss-security/2017/12/21/2 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/102288 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-16995 Vendor Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454 x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1528518 Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adb x_refsource_CONFIRMVendor Advisory
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-16995
- https://usn.ubuntu.com/3619-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3619-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3633-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/usn/usn-3523-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-16995
- https://www.debian.org/security/2017/dsa-4073 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.exploit-db.com/exploits/44298/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/45010/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/45058/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
Change history (0)
No recorded changes yet.