Python-RSA before 4.1 ignores leading ‘ ‘ bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13757
Reference (s):
- https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667
- FEDORA:FEDORA-2020-253ebe55ff
- URL: https://lists.fedoraproject.org/archives/list/[email protected]/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/
- FEDORA:FEDORA-2020-5ed5627d2b
- URL: https://lists.fedoraproject.org/archives/list/[email protected]/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/