CVE-2016-2543

Severity Score

6.2

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call.

La función snd_seq_ioctl_remove_events en sound/core/seq/seq_clientmgr.c en el kernel de Linux en versiones anteriores a 4.4.1 no verifica la asignación FIFO antes de proceder con la limpieza FIFO, lo que permite a usuarios locales causar una denegación de servicio (referencia a puntero NULL y OOPS) a través de una llamada ioctl manipulada.

*Credits: N/A

Attack Vector

Local

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

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-02-23 CVE Reserved
2016-03-04 CVE Published
2023-11-10 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (20)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/01/19/1	Mailing List
http://www.securityfocus.com/bid/83377	Vdb Entry
http://www.securitytracker.com/id/1035304	Vdb Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1311554	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://github.com/torvalds/linux/commit/030e2c78d3a91dd0d27fef37e91950dde333eba1	2017-09-07

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=030e2c78d3a91dd0d27fef37e91950dde333eba1	2017-09-07
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html	2017-09-07
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html	2017-09-07
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html	2017-09-07
http://www.debian.org/security/2016/dsa-3503	2017-09-07
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1	2017-09-07
http://www.ubuntu.com/usn/USN-2929-1	2017-09-07
http://www.ubuntu.com/usn/USN-2929-2	2017-09-07
http://www.ubuntu.com/usn/USN-2930-1	2017-09-07
http://www.ubuntu.com/usn/USN-2930-2	2017-09-07
http://www.ubuntu.com/usn/USN-2930-3	2017-09-07
http://www.ubuntu.com/usn/USN-2931-1	2017-09-07
http://www.ubuntu.com/usn/USN-2932-1	2017-09-07
http://www.ubuntu.com/usn/USN-2967-1	2017-09-07
http://www.ubuntu.com/usn/USN-2967-2	2017-09-07

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"				<= 4.4 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.4"		-		Affected