SB2024062475 - Buffer overflow in Linux kernel mptcp
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062475
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) Buffer overflow (CVE-ID: CVE-2021-47152)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the mptcp_skb_can_collapse_to() function in net/mptcp/protocol.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/3267a061096efc91eda52c2a0c61ba76e46e4b34
- https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8
- https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154
- 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