Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS00OWhoLWZwcngtbTY4Z84AA1rB

Default functions in VolatileMemory trait lack bounds checks, potentially leading to out-of-bounds memory accesses

Impact

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.

Patches

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.

Workarounds

Not Required

References

https://github.com/rust-vmm/vm-memory/commit/aff1dd4a5259f7deba56692840f7a2d9ca34c9c8
https://crates.io/crates/vm-memory/0.12.2

Permalink: https://github.com/advisories/GHSA-49hh-fprx-m68g
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS00OWhoLWZwcngtbTY4Z84AA1rB
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Low
Classification: General
Published: about 1 year ago
Updated: about 1 year ago

CVSS Score: 2.5
CVSS vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Identifiers: GHSA-49hh-fprx-m68g, CVE-2023-41051
References:

• https://github.com/rust-vmm/vm-memory/security/advisories/GHSA-49hh-fprx-m68g
• https://nvd.nist.gov/vuln/detail/CVE-2023-41051
• https://github.com/rust-vmm/vm-memory/commit/aff1dd4a5259f7deba56692840f7a2d9ca34c9c8
• https://crates.io/crates/vm-memory/0.12.2
• https://github.com/rust-vmm/vm-memory/issues/250
• https://rustsec.org/advisories/RUSTSEC-2023-0056.html
• https://lists.fedoraproject.org/archives/list/[email protected]/message/XZGJL6BQLU4XCPQLLTW4GSSBTNQXB3TI/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/IPXRXD5VXBZHBGMUM77B52CJJMG7EJGI/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/SYM6CYW2DWRHRAVL2HYTQPXC3J2V77J4/
• https://github.com/advisories/GHSA-49hh-fprx-m68g

Repository: https://github.com/rust-vmm/vm-memory
Blast Radius: 6.1

Affected Packages