SB2024053053 - Memory leak in Linux kernel ipv4
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053053
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-2021-47238)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ip_mc_destroy_dev() function in net/ipv4/igmp.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/0dc13e75507faa17ac9f7562b4ef7bf8fcd78422
- https://git.kernel.org/stable/c/6cff57eea3347f79f1867cc53e1093b6614138d8
- https://git.kernel.org/stable/c/1e28018b5c83d5073f74a6fb72eabe8370b2f501
- https://git.kernel.org/stable/c/3dd2aeac2e9624cff9fa634710837e4f2e352758
- https://git.kernel.org/stable/c/ac31cc837cafb57a271babad8ccffbf733caa076
- https://git.kernel.org/stable/c/77de6ee73f54a9a89c0afa0bf4c53b239aa9953a
- https://git.kernel.org/stable/c/d8e2973029b8b2ce477b564824431f3385c77083
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.238
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.196
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.274
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.128