—
PYSEC-2020-99
Quick fix
PYSEC-2020-99 — rsa: upgrade to the fixed version with the command below.
pip install --upgrade 'rsa>=4.1'Details
Python-RSA before 4.1 ignores leading '\0' 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).
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/sybrenstuvel/python-rsa/issues/146[REPORT]
- https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667[REPORT]
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/[WEB]
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/[WEB]
- https://usn.ubuntu.com/4478-1/[WEB]
- https://github.com/advisories/GHSA-537h-rv9q-vvph[ADVISORY]