CVE-2020-14416

openSUSE Security Advisory - openSUSE-SU-2021:0242-1

Severity Score

4.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c.

En el kernel de Linux versiones anteriores a 5.4.16, una condición de carrera en el manejo de tty-)disc_data en la disciplina de línea slip y slcan podría conllevar a un uso de la memoria previamente liberada, también se conoce como CID-0ace17d56824. Esto afecta a los archivos drivers/net/slip/slip.c y drivers/net/can/slcan.c

An update that solves 79 vulnerabilities and has 676 fixes is now available. This update syncs the RT kernel from the SUSE Linux Enterprise 15-SP2 codestream. This update was imported from the SUSE:SLE-15-SP2:Update update project.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-06-18 CVE Reserved
2020-06-18 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416: Use After Free

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://bugzilla.suse.com/show_bug.cgi?id=1162002	2022-05-03
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ace17d56824165c7f4c68785d6b58971db954dd	2022-05-03

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html	2022-05-03
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html	2022-05-03
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.16	2022-05-03

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"				< 5.4.16 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.16"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"		-		Affected