CVE-2017-16648

kernel: Use-after-free in drivers/media/dvb-core/dvb_frontend.c

Severity Score

6.6

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The dvb_frontend_free function in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device. NOTE: the function was later renamed __dvb_frontend_free.

La función dvb_frontend_free en drivers/media/dvb-core/dvb_frontend.c en el kernel de Linux, en versiones hasta la 4.13.11, permite que los usuarios locales provoquen una denegación de servicio (uso de memoria previamente liberada y cierre inesperado del sistema) o, posiblemente, causen otros impactos no especificados mediante un dispositivo USB manipulado. NOTA: la función fue posteriormente renombrada como __dvb_frontend_free.

The dvb frontend management subsystem in the Linux kernel contains a use-after-free which can allow a malicious user to write to memory that may be assigned to another kernel structure. This could create memory corruption, panic, or possibly other side affects.

The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include buffer overflow, bypass, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-07 CVE Reserved
2017-11-07 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/101758	Third Party Advisory
https://groups.google.com/d/msg/syzkaller/0HJQqTm0G_g/T931ItskBAAJ	Mailing List
https://patchwork.kernel.org/patch/10046189	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:2948	2018-10-31
https://access.redhat.com/security/cve/CVE-2017-16648	2018-10-30
https://bugzilla.redhat.com/show_bug.cgi?id=1516257	2018-10-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 4.13.11 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.13.11"		-		Affected