CVE-2020-15093

The tough library (Rust/crates.io) prior to version 0.7.1 does not properly verify the threshold of cryptographic signatures. It allows an attacker to duplicate a valid signature in order to circumvent TUF requiring a minimum threshold of unique signatures before the metadata is considered valid. A fix is available in version 0.7.1. CVE-2020-6174 is assigned to the same vulnerability in the TUF reference implementation.

• CWE-347
• CWE-347

• https://crates.io/crates/toughThird Party Advisory
• https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49Third Party Advisory
• https://github.com/theupdateframework/tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0ePatch, Third Party Advisory
• https://github.com/theupdateframework/tuf/pull/974Issue Tracking, Patch, Third Party Advisory
• https://crates.io/crates/toughThird Party Advisory
• https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49Third Party Advisory
• https://github.com/theupdateframework/tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0ePatch, Third Party Advisory
• https://github.com/theupdateframework/tuf/pull/974Issue Tracking, Patch, Third Party Advisory

Published

Jul 9, 2020

Last Modified

Jun 17, 2026

Status

Modified

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