SB20240531278 - Out-of-bounds read in Linux kernel netfilter
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531278
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-2021-46992)
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 nft_rhash_destroy() function in net/netfilter/nft_set_hash.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/2824cafc6a93792d9ad85939c499161214d84c4b
- https://git.kernel.org/stable/c/efcd730ddd6f25578bd31bfe703e593e2421d708
- https://git.kernel.org/stable/c/c77e2ef18167ad334e27610ced9a7f6af5ec1787
- https://git.kernel.org/stable/c/72b49dd116ca00a46a11d5a4d8d7987f05ed9cd7
- https://git.kernel.org/stable/c/1e8ab479cfbe5751efccedb95afb9b112a5ba475
- https://git.kernel.org/stable/c/a388d10961ff8578b1a6691945d406c0f33aa71b
- https://git.kernel.org/stable/c/a54754ec9891830ba548e2010c889e3c8146e449
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.233
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.191
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.120