SB20240531262 - Out-of-bounds read in Linux kernel sched
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531262
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) Out-of-bounds read (CVE-ID: CVE-2021-47175)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the fq_pie_qdisc_enqueue() function in net/sched/sch_fq_pie.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/e6294c06e7c62ffdd5bf3df696d3a4fcbb753d3c
- https://git.kernel.org/stable/c/7a1bdec12e43e29cc34a4394590337069d8812ce
- https://git.kernel.org/stable/c/e70f7a11876a1a788ceadf75e9e5f7af2c868680
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.42
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13