Vulnerabilities > CVE-2023-41051 - Out-of-bounds Read vulnerability in Vm-Memory Project Vm-Memory

CVSS 4.7 - MEDIUM

Attack vector

LOCAL

Attack complexity

HIGH

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

local

high complexity

vm-memory-project

CWE-125

NVD

Published: 2023-09-01

Updated: 2023-09-28

Summary

In a typical Virtual Machine Monitor (VMM) there are several components, such as boot loader, virtual device drivers, virtio backend drivers and vhost drivers, that need to access the VM physical memory. The vm-memory rust crate provides a set of traits to decouple VM memory consumers from VM memory providers. An issue was discovered in the default implementations of the `VolatileMemory::{get_atomic_ref, aligned_as_ref, aligned_as_mut, get_ref, get_array_ref}` trait functions, which allows out-of-bounds memory access if the `VolatileMemory::get_slice` function returns a `VolatileSlice` whose length is less than the function’s `count` argument. No implementations of `get_slice` provided in `vm_memory` are affected. Users of custom `VolatileMemory` implementations may be impacted if the custom implementation does not adhere to `get_slice`'s documentation. The issue started in version 0.1.0 but was fixed in version 0.12.2 by inserting a check that verifies that the `VolatileSlice` returned by `get_slice` is of the correct length. Users are advised to upgrade. There are no known workarounds for this issue.

Vulnerable Configurations

Part	Description	Count
Application	Vm-Memory_Project VM Memory Project VM Memory 0.1.0 VM Memory Project VM Memory 0.1.1 VM Memory Project VM Memory 0.1.2 VM Memory Project VM Memory 0.2.0 VM Memory Project VM Memory 0.2.1 VM Memory Project VM Memory 0.2.2 VM Memory Project VM Memory 0.3.0 VM Memory Project VM Memory 0.4.0 VM Memory Project VM Memory 0.5.0 VM Memory Project VM Memory 0.6.0 VM Memory Project VM Memory 0.7.0 VM Memory Project VM Memory 0.8.0 VM Memory Project VM Memory 0.9.0 VM Memory Project VM Memory 0.10.0 VM Memory Project VM Memory 0.11.0 VM Memory Project VM Memory 0.12.0 VM Memory Project VM Memory 0.12.1	17

Common Weakness Enumeration (CWE)

CWE-125 - Out-of-bounds Read

Common Attack Pattern Enumeration and Classification (CAPEC)

Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

References