CVE-2023-50711

rust-vmm-sys-util: vmm-sys-util is a collection of modules that provides helpers and utilities used by multiple rust-vmm components

CVE-2023-50711 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2023-50711, released January 2, 2024. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
9.8
critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0065
51st percentile

vmm-sys-util is a collection of modules that provides helpers and utilities used by multiple rust-vmm components. Starting in version 0.5.0 and prior to version 0.12.0, an issue in the `FamStructWrapper::deserialize` implementation provided by the crate for `vmm_sys_util::fam::FamStructWrapper` can lead to out of bounds memory accesses. The deserialization does not check that the length stored in the header matches the flexible array length. Mismatch in the lengths might allow out of bounds memory access through Rust-safe methods. The issue was corrected in version 0.12.0 by inserting a check that verifies the lengths of compared flexible arrays are equal for any deserialized header and aborting deserialization otherwise. Moreover, the API was changed so that header length can only be modified through Rust-unsafe code. This ensures that users cannot trigger out-of-bounds memory access from Rust-safe code.

Where it's fixed

ProductFixed inFixReleased
Linux
aws-nitro-enclaves-cli · opensuse-leap 15.6 1.3.0~git1.db34c02-150600.10.3.1 SUSE-SU-2024:1966-1 Jun 10, 2024
aws-nitro-enclaves-cli · sles 15.6 1.3.0~git1.db34c02-150600.10.3.1 SUSE-SU-2024:1966-1 Jun 10, 2024
rust-vmm-sys-util · Debian 13.5 (trixie) 0.12.1-1 DEBIAN-CVE-2023-50711 Jan 2, 2024
rust-vmm-sys-util · Debian 14 0.12.1-1 DEBIAN-CVE-2023-50711 Jan 2, 2024

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