SB20241230235 - Integer underflow in Linux kernel can j1939
Published: December 30, 2024 Updated: May 11, 2025
Security Bulletin ID
SB20241230235
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-2024-56645)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the j1939_session_new() function in net/can/j1939/transport.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/224e606a8d8e8c7db94036272c47a37455667313
- https://git.kernel.org/stable/c/4199dd78a59896e091d3a7a05a77451aa7fd724d
- https://git.kernel.org/stable/c/426d94815e12b6bdb9a75af294fbbafb9301601d
- https://git.kernel.org/stable/c/68fceb143b635cdc59fed3896d5910aff38f345e
- https://git.kernel.org/stable/c/a8c695005bfe6569acd73d777ca298ddddd66105
- https://git.kernel.org/stable/c/b3282c2bebeeb82ceec492ee4972f51ee7a4a132
- https://git.kernel.org/stable/c/f117cba69cbbd496babb3defcdf440df4fd6fe14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120