GHSA-R7VQ-6425-J94W Python-TUF vulnerable to incorrect threshold signature computation for new root metadata

Impact The function verifyrootselfsigned, introduced in v0.14.0, and which verifies self-signatures in a new root metadata file, counted multiple signatures by any new root key towards the new threshold. That is, any single new root key could theoretically provide enough signatures to meet the...

GHSA-F8MR-JV2C-V8MG Invalid root may become trusted root in The Update Framework (TUF)

Impact The Python TUF reference implementation tuf0.12 will incorrectly trust a previously downloaded root metadata file which failed verification at download time. This allows an attacker who is able to serve multiple new versions of root metadata i.e. by a man-in-the-middle attack culminating i...

Invalid root may become trusted root in The Update Framework (TUF)

Impact The Python TUF reference implementation tuf0.12 will incorrectly trust a previously downloaded root metadata file which failed verification at download time. This allows an attacker who is able to serve multiple new versions of root metadata i.e. by a man-in-the-middle attack culminating i...