SB2024062094 - Integer underflow in Linux kernel ipv6
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062094
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer underflow (CVE-ID: CVE-2021-47588)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the sit_init_net() function in net/ipv6/sit.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4e1797914d8f223726ff6ae5ece4f97d73f21bab
- https://git.kernel.org/stable/c/e56b65c1e74d7f706d74b51baba15187be2fb4b5
- https://git.kernel.org/stable/c/ad0ed314d6167b212939e3839428ba0c8bb16adb
- https://git.kernel.org/stable/c/6f46c59e60b64620d5d386c8ee2eaa11ebe3b595
- https://git.kernel.org/stable/c/44a6c846bc3a7efe7d394bab8b2ae3b7f580e190
- https://git.kernel.org/stable/c/e28587cc491ef0f3c51258fdc87fbc386b1d4c59
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.259
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.222
- 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