GHSA-27FJ-MC8W-J9WG RSA signature validation vulnerability on maleable encoded message in jsrsasign

Impact Vulnerable jsrsasign will accept RSA signature with improper PKCS1.5 padding. Decoded RSA signature value consists following form: 01ff...8 or more ffs...ff00ASN.1 OF DigestInfo Its byte length must be the same as RSA key length, however such checking was not sufficient. To make crafted...

RSA signature validation vulnerability on maleable encoded message in jsrsasign

Impact Vulnerable jsrsasign will accept RSA signature with improper PKCS1.5 padding. Decoded RSA signature value consists following form: 01ff...8 or more ffs...ff00ASN.1 OF DigestInfo Its byte length must be the same as RSA key length, however such checking was not sufficient. To make crafted...