CVE-2020-13757
High
Description
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).
SeverityHigh
CVSS7.5
Exploit probability—
Product
Python-rsa
PublishedJun 1, 2020
First seenJun 1, 2020
How to fix
Update
- python-rsa_project python-rsa4.1 or later
- rsa4.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| python-rsa_project python-rsa | v < 4.1 | 4.1 |
| fedoraproject fedora | 31, 32 | — |
| canonical ubuntu_linux | 14.04 | — |
| rsaPyPI | v < 4.1 | 4.1 |
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