SB2024053069 - Memory leak in Linux kernel comedi driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053069
CSH 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 vulnerability.
1) Memory leak (CVE-ID: CVE-2021-47364)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the compat_insnlist() function in drivers/staging/comedi/comedi_fops.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/8d6a21e4cd6a319b0662cbe4ad6199e276ac776a
- https://git.kernel.org/stable/c/f217b6c1e28ed0b353634ce4d92a155b80bd1671
- https://git.kernel.org/stable/c/bb509a6ffed2c8b0950f637ab5779aa818ed1596
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.70
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15