Local PrivEsc via OOB in Linux io_uring buffer register
CVE-2023-2598 Published on June 1, 2023
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
Vulnerability Analysis
CVE-2023-2598 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2023-2598 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2023-2598
stack.watch emails you whenever new vulnerabilities are published in Linux Kernel or NetApp Hci Baseboard Management Controller. Just hit a watch button to start following.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.