kernel: vhci_cd driver in usbip/vhci_sysfs.c:port_show_vhci() discloses kernel memory addresses to local attackers
Published Jan 31, 2018
4.7
MEDIUMCVSS 3.0
EPSS 0.39%
Description
The vhci_hcd driver in the Linux Kernel before version 4.14.8 and 4.4.114 allows allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP.
Affected products
-
- Version Before version 4.14.8 and 4.4.114StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Flexera Software LLC | Linux Kernel | n/a |
|
- ≥ 4.4.0 · < 4.4.114
- ≥ 4.9.0 · < 4.9.79
- ≥ 4.14.0 · < 4.14.8
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 Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, and 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not enabled and is not built 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:H/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:L/I:N/A:N
AV:L/AC:M/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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00391) | 30.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00399) | 31.43th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00059) | 15.62th | 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) |
| Feb 3, 2022 | 1.44% (0.01440) | 32.36th | v1 |
| Jan 6, 2022 | 1.44% (0.01440) | 31.65th | v1 |
| Sep 1, 2021 | 1.44% (0.01440) | 71.01th | v1 |
| Apr 14, 2021 | 1.44% (0.01440) | 0.00th | v1 |
References (16)
- http://www.securityfocus.com/bid/102156 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-16911 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1541876 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 x_refsource_MISCIssue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.114 x_refsource_MISCIssue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/drivers/usb/usbip?id=2f2d0088eb93db5c649d2a5e34a3800a8a935fc5 x_refsource_MISCPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-16911
- https://secuniaresearch.flexerasoftware.com/advisories/80454/ x_refsource_MISCThird Party Advisory
- https://secuniaresearch.flexerasoftware.com/secunia_research/2017-20/ x_refsource_MISCThird Party Advisory
- https://usn.ubuntu.com/3619-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3619-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3754-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-16911
- https://www.debian.org/security/2018/dsa-4187 vendor-advisoryx_refsource_DEBIAN
- https://www.spinics.net/lists/linux-usb/msg163480.html x_refsource_MISCIssue TrackingMailing List
Change history (0)
No recorded changes yet.