Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWd4NzMtMjQ5OC1yNTVj

Unsound casting in flatbuffers

The implementation of impl Follow for bool allows to reinterpret arbitrary bytes as a bool.

In Rust bool has stringent requirements for its in-memory representation. Use of this function allows to violate these requirements and invoke undefined behaviour in safe code.

Permalink: https://github.com/advisories/GHSA-gx73-2498-r55c
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWd4NzMtMjQ5OC1yNTVj
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 2 years ago
Updated: 11 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-gx73-2498-r55c, CVE-2019-25004
References:

• https://nvd.nist.gov/vuln/detail/CVE-2019-25004
• https://github.com/google/flatbuffers/issues/5530
• https://rustsec.org/advisories/RUSTSEC-2019-0028.html
• https://github.com/advisories/GHSA-gx73-2498-r55c

Repository: https://github.com/google/flatbuffers
Blast Radius: 28.9

Affected Packages