A flaw was found in the python-rsa package, where it does not explicitly check the ciphertext length against the key size and ignores the leading 0 bytes during the decryption of the ciphertext. This flaw allows an attacker to perform a ciphertext attack, leading to a denial of service. The highest threat from this vulnerability is to confidentiality.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | python-rsa | 2020-08-26 23:09 | ALAS-2020-1421 |
Amazon Linux 2 - Core | python-rsa | 2020-07-31 19:21 | ALAS2-2020-1470 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
NVD | CVSSv2 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
NVD | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |