SB20240620209 - Use of uninitialized resource in Linux kernel ipv4
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620209
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) Use of uninitialized resource (CVE-ID: CVE-2021-47597)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the inet_sk_diag_fill() function in net/ipv4/inet_diag.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/7b5596e531253ce84213d9daa7120b71c9d83198
- https://git.kernel.org/stable/c/3a4f6dba1eb98101abc012ef968a8b10dac1ce50
- https://git.kernel.org/stable/c/e5d28205bf1de7082d904ed277ceb2db2879e302
- https://git.kernel.org/stable/c/71ddeac8cd1d217744a0e060ff520e147c9328d1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.88
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.168