PT-2024-29730 · Linux+6 · Linux Kernel+6
Syzbot
·
Published
2024-05-17
·
Updated
2025-09-29
·
CVE-2024-42076
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.9.0
Description
The vulnerability is related to a kernel-infoleak issue in the Linux kernel's net/can/j1939 module. The
j1939 send one() function creates a full frame including unused data but does not initialize it, causing the kernel-infoleak issue. This can be fixed by initializing the unused data. The issue was reported by syzbot and is related to the raw recvmsg() function.Recommendations
To resolve the issue, update the Linux kernel to version 6.9.0 or later. If an update is not possible, consider disabling the
j1939 send one() function or restricting access to the vulnerable module as a temporary workaround.Exploit
Fix
Use of Uninitialized Resource
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu