CVE-2023-52452

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the Linux kernel's handling of uninitialized stack memory. Privileged programs are supposed to be able to read this memory, but before the patch, these accesses were permitted inconsistently. The patch fixes this by allowing these accesses and also fixes the tracking of the stack size for variable-offset reads. This could have led to a program verifying but then attempting to read out-of-bounds data at runtime because a too small stack had been allocated for it. The check stack slot within bounds() and check stack range initialized() functions were affected. The patch centralizes the tracking of stack size in grow stack state() and lifts the calls to grow stack state() to check stack access within bounds().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.