Vulnerability Description
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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vm-Memory Project | Vm-Memory | >= 0.1.0, < 0.12.2 |
Related Weaknesses (CWE)
References
- https://crates.io/crates/vm-memory/0.12.2Product
- https://github.com/rust-vmm/vm-memory/commit/aff1dd4a5259f7deba56692840f7a2d9ca3Patch
- https://github.com/rust-vmm/vm-memory/security/advisories/GHSA-49hh-fprx-m68gVendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://crates.io/crates/vm-memory/0.12.2Product
- https://github.com/rust-vmm/vm-memory/commit/aff1dd4a5259f7deba56692840f7a2d9ca3Patch
- https://github.com/rust-vmm/vm-memory/security/advisories/GHSA-49hh-fprx-m68gVendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://lists.fedoraproject.org/archives/list/[email protected]
FAQ
What is CVE-2023-41051?
CVE-2023-41051 is a vulnerability with a CVSS score of 2.5 (LOW). 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 memo...
How severe is CVE-2023-41051?
CVE-2023-41051 has been rated LOW with a CVSS base score of 2.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-41051?
Check the references section above for vendor advisories and patch information. Affected products include: Vm-Memory Project Vm-Memory.