VDB-109141 · CVE-2017-16538 · Qualys 276995

Linux Kernel up to 4.13.11 lmedm04.c input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Linux Kernel up to 4.13.11 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown code of the file drivers/media/usb/dvb-usb-v2/lmedm04.c. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

drivers/media/usb/dvb-usb-v2/lmedm04.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (general protection fault and system crash) or possibly have unspecified other impact via crafted system calls, related to a missing warm-start check and incorrect attach timing (dm04_lme2510_frontend_attach versus dm04_lme2510_tuner).

The bug was discovered 09/26/2017. The weakness was released 11/04/2017 (Website). The advisory is shared at groups.google.com. This vulnerability is known as CVE-2017-16538 since 11/03/2017. An attack has to be approached locally. A single authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 38 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104536 (Fedora 26 : kernel (2017-31d7720d7e)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276995 (Fedora Security Update for kernel (FEDORA-2017-31d7720d7e)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104536).







CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.6
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Class: Input validation

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 104536
Nessus Name: Fedora 26 : kernel (2017-31d7720d7e)
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OpenVAS ID: 855273
OpenVAS Name: Fedora Update for kernel FEDORA-2017-08a350c878
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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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09/26/2017 🔍
11/03/2017 +38 days 🔍
11/03/2017 +0 days 🔍
11/04/2017 +1 days 🔍
11/04/2017 +0 days 🔍
11/14/2017 +10 days 🔍
11/14/2017 +0 days 🔍
01/06/2023 +1879 days 🔍


Vendor: kernel.org

Advisory: FEDORA-2017-31d7720d7e
Status: Not defined

CVE: CVE-2017-16538 (🔍)


Created: 11/04/2017 04:26 PM
Updated: 01/06/2023 01:54 PM
Changes: 11/04/2017 04:26 PM (76), 12/04/2019 03:36 PM (3), 01/06/2023 01:48 PM (4), 01/06/2023 01:54 PM (1)
Complete: 🔍
Cache ID: 44:013:40


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