SB20240531217 - Out-of-bounds read in Linux kernel ipv6
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531217
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-2021-47291)
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/830251361425c5be044db4d826aaf304ea3d14c6
- https://git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680
- https://git.kernel.org/stable/c/115784bcccf135c3a3548098153413d76f16aae0
- https://git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.54
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.136