SB2024071720 - Memory leak in Linux kernel sunrpc
Published: July 17, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071720
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) Memory leak (CVE-ID: CVE-2021-47624)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the rpc_sysfs_xprt_state_change() function in net/sunrpc/sysfs.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/4b22aa42bd4d2d630ef1854c139275c3532937cb
- https://git.kernel.org/stable/c/5f6024c05a2c0fdd180b29395aaf686d25af3a0f
- https://git.kernel.org/stable/c/776d794f28c95051bc70405a7b1fa40115658a18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17