SB20240531263 - Out-of-bounds read in Linux kernel ipv6
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531263
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-2021-47126)
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 ip6_route_info_create() function in net/ipv6/route.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/7ba7fa78a92dc410b6f93ed73075ab669c3a0b59
- https://git.kernel.org/stable/c/09870235827451409ff546b073d754a19fd17e2e
- https://git.kernel.org/stable/c/0a462e25ef0f7ab305081a08d435bbd1f13c0a94
- https://git.kernel.org/stable/c/821bbf79fe46a8b1d18aa456e8ed0a3c208c3754
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.43
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.125