SB2024060844 - Information disclosure in Linux kernel rxrpc
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060844
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2021-47539)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information disclosure within the rxrpc_get_bundle() and rxrpc_look_up_bundle() functions in net/rxrpc/conn_client.c. A local user can gain access to sensitive information.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b
- https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7
- https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16