kernel: crash on invalid USB device descriptors (usbnet driver)
Published May 2, 2016
4.6
MEDIUMCVSS 3.0
EPSS 0.59%
Description
Double free vulnerability in drivers/net/usb/cdc_ncm.c in the Linux kernel before 4.5 allows physically proximate attackers to cause a denial of service (system crash) or possibly have unspecified other impact by inserting a USB device with an invalid USB descriptor.
Affected products
No data.
Configuration 1
- 12.04
- 14.04
- 15.10
Configuration 2
- 12.0
- 12.0
- 12
- 12
- 12.0
- 12
- 12
- 12.0
- 12.0
- 12.0
- 12.0
Configuration 3
- 4.5.0
No data.
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise Linux 6
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel-rt
Will not fix
Red Hat Enterprise MRG 2
realtime-kernel
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:L/Au:N/C:N/I:N/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.59% (0.00586) | 46.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.59% (0.00586) | 43.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00041) | 9.48th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.39% (0.00388) | 74.05th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.39% (0.00388) | 72.47th | v3 (v2023.03.01) |
| Nov 15, 2023 | 0.39% (0.00388) | 70.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.27% (0.00273) | 62.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (27)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1666984c8625b3db19a9abc298931d35ab7bc64b x_refsource_CONFIRMVendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4d06dd537f95683aba3651098ae288b7cbff8274 x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00060.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2016/04/06/4 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/91028 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036763 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2989-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2998-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3000-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3001-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3002-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3003-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3004-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3021-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3021-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-3951 Vendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=974418
- https://bugzilla.redhat.com/show_bug.cgi?id=1324782 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/1666984c8625b3db19a9abc298931d35ab7bc64b x_refsource_CONFIRMVendor Advisory
- https://github.com/torvalds/linux/commit/4d06dd537f95683aba3651098ae288b7cbff8274 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-3951
- https://www.cve.org/CVERecord?id=CVE-2016-3951
- https://www.spinics.net/lists/netdev/msg367669.html mailing-listx_refsource_MLIST
Change history (0)
No recorded changes yet.