SB2024060475 - Use-after-free in Linux kernel tipc
Published: June 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060475
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) Use-after-free (CVE-ID: CVE-2021-47162)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tipc_buf_append() function in net/tipc/msg.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/b2c8d28c34b3070407cb1741f9ba3f15d0284b8b
- https://git.kernel.org/stable/c/5489f30bb78ff0dafb4229a69632afc2ba20765c
- https://git.kernel.org/stable/c/436d650d374329a591c30339a91fa5078052ed1e
- https://git.kernel.org/stable/c/4b1761898861117c97066aea6c58f68a7787f0bf
- https://git.kernel.org/stable/c/64d17ec9f1ded042c4b188d15734f33486ed9966
- https://git.kernel.org/stable/c/6da24cfc83ba4f97ea44fc7ae9999a006101755c
- https://git.kernel.org/stable/c/ace300eecbccaa698e2b472843c74a5f33f7dce8
- https://git.kernel.org/stable/c/b7df21cf1b79ab7026f545e7bf837bd5750ac026
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.235
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.193
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.271
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.271
- 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
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.124