Linux Kernel up to 4.14.10 usbtv-core.c usbtv_probe use after free

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.10

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 4.14.10. This affects the function usbtv_probe of the file drivers/media/usb/usbtv/usbtv-core.c. The manipulation leads to use after free. This vulnerability is referenced as CVE-2017-17975. The attack can only be performed from a local environment. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.14.10 (Operating System). It has been rated as problematic. This issue affects the function usbtv_probe of the file drivers/media/usb/usbtv/usbtv-core.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is availability. The summary by CVE is:

Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure.

The bug was discovered 11/19/2017. The weakness was published 12/30/2017 (Website). The advisory is shared at linuxtesting.org. The identification of this vulnerability is CVE-2017-17975 since 12/29/2017. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 40 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109518 (Debian DSA-4188-1 : linux - security update (Spectre)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170961 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2018:0786-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109518), SecurityFocus (BID 102330†) and CERT Bund (WID-SEC-2022-0532). Similar entries are available at VDB-112681, VDB-113696, VDB-113823 and VDB-114029. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Oracle Linux
  • Debian Linux
  • Open Source Linux Kernel
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle VM
  • NetApp FAS
  • Avaya Aura Communication Manager
  • Avaya Aura Session Manager
  • Avaya Aura Application Enablement Services
  • Avaya Aura System Manager
  • Avaya Aura Experience Portal
  • NetApp AFF

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109518
Nessus Name: Debian DSA-4188-1 : linux - security update (Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802268
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2018:0781-1 (Linux Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/19/2017 🔍
12/29/2017 +40 days 🔍
12/29/2017 +0 days 🔍
12/29/2017 +0 days 🔍
12/30/2017 +1 days 🔍
12/30/2017 +0 days 🔍
05/01/2018 +122 days 🔍
05/02/2018 +1 days 🔍
09/14/2025 +2692 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3653-1
Researcher: Tuba Yavuz
Status: Confirmed

CVE: CVE-2017-17975 (🔍)
GCVE (CVE): GCVE-0-2017-17975
GCVE (VulDB): GCVE-100-111185

OVAL: 🔍

SecurityFocus: 102330 - Linux Kernel 'drivers/media/usb/usbtv/usbtv-core.c' Local Denial of Service Vulnerability
CERT Bund: WID-SEC-2022-0532 - Linux Kernel: Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 12/30/2017 11:59
Updated: 09/14/2025 02:02
Changes: 12/30/2017 11:59 (70), 12/18/2019 16:58 (14), 01/28/2021 10:19 (2), 01/19/2023 14:48 (3), 09/14/2025 02:02 (23)
Complete: 🔍
Cache ID: 216:D41:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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