SB2024081948 - Use-after-free in Linux kernel hardware mISDN driver
Published: August 19, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024081948
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-42280)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the hfcmulti_dtmf() and HFC_wait_nodebug() functions in drivers/isdn/hardware/mISDN/hfcmulti.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4d8b642985ae24f4b3656438eb8489834a17bb80
- https://git.kernel.org/stable/c/ddc79556641ee070d36be0de4a1f0a16a71f1fc7
- https://git.kernel.org/stable/c/7e4a539bca7d8d20f2c5d93c18cce8ef77cd78e0
- https://git.kernel.org/stable/c/61ab751451f5ebd0b98e02276a44e23a10110402
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.320
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.224
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.165
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.282
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.103
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.44