kernel: Crash on invalid USB device descriptors (mct_u232 driver)
Published May 2, 2016
4.6
MEDIUMCVSS 3.0
EPSS 1.80%
Description
The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device without two interrupt-in endpoint descriptors.
Affected products
No data.
Configuration 1
- ≤ 4.5.0
Configuration 2
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
Configuration 3
- 12.04
- 14.04
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
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 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | 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 does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code with the flaw is not present in the products listed. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.80% (0.01797) | 77.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.80% (0.01797) | 75.52th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00145) | 32.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.44% (0.01444) | 87.17th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.44% (0.01444) | 85.13th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00314) | 65.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 15.58% (0.15579) | 96.00th | v2 (v2022.01.01) |
| Apr 1, 2022 | 15.58% (0.15579) | 95.64th | v2 (v2022.01.01) |
| Feb 4, 2022 | 15.58% (0.15579) | 92.54th | v2 (v2022.01.01) |
References (25)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4e9a0b05257f29cf4b75f3209243ed71614d062e x_refsource_CONFIRM
- 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_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html vendor-advisoryx_refsource_SUSE
- http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2016/03/14/2 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/84299 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2968-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2968-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2970-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2971-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2971-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2971-3 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2996-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2997-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3000-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2016-3136 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1283370 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1317007 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/4e9a0b05257f29cf4b75f3209243ed71614d062e x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2016-3136
- https://www.cve.org/CVERecord?id=CVE-2016-3136
- https://www.exploit-db.com/exploits/39541/ exploitx_refsource_EXPLOIT-DB
Change history (0)
No recorded changes yet.