CVE-2023-41051

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Summary

CVECVE-2023-41051
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-09-01 19:15:00 UTC
Updated2023-09-28 03:15:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Vm-memory Project Vm-memory All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 37 Update: firecracker-1.4.1-2.fc37 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
fix: Validate return value of get_slice in VolatileMemory · rust-vmm/vm-memory@aff1dd4 · GitHub MISC github.com
crates.io/crates/vm-memory/0.12.2 MISC crates.io
[SECURITY] Fedora 38 Update: libkrun-1.5.0-6.fc38 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
[SECURITY] Fedora 39 Update: virtiofsd-1.7.0-4.fc39 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
Default functions in VolatileMemory trait lack bounds checks, potentially leading to out-of-bounds memory accesses · Advisory · rust-vmm/vm-memory · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 284548 Fedora Security Update for firecracker (FEDORA-2023-1db67725f2)
  • 284553 Fedora Security Update for firecracker (FEDORA-2023-c19aaa2283)
  • 285252 Fedora Security Update for firecracker (FEDORA-2023-8e6ae98f81)

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