SB20240608249 - Improper Initialization in Linux kernel hardware mISDN driver
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240608249
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Initialization (CVE-ID: CVE-2021-47284)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper initialization within the nj_probe() function in drivers/isdn/hardware/mISDN/netjet.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/958cb1078ca60d214826fd90a0961a447fade59a
- https://git.kernel.org/stable/c/4c1fcb6ec964b44edbf84235134582a5ffae1521
- https://git.kernel.org/stable/c/a0a37e4454ca1c0b424edc2c9c2487c2c46a1be6
- https://git.kernel.org/stable/c/bf78e25bd3f487208e042c67c8a31706c2dba265
- https://git.kernel.org/stable/c/9d7d4649dc1c53acf76df260fd519db698ed20d7
- https://git.kernel.org/stable/c/143fc7220961220eecc04669e5909af8847bf8c8
- https://git.kernel.org/stable/c/6249193e03709ea625e10706ecaf17fea0427d3d
- https://git.kernel.org/stable/c/9f6f852550d0e1b7735651228116ae9d300f69b3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.237
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.195
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.273
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.273
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.126