Description
python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
References (3)
Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuapr2022.html
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujul2022.html
Scores
CVSS v3
5.9
EPSS
0.0245
EPSS Percentile
82.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-385
Status
published
Products (3)
cryptography.io/cryptography
3.2
oracle/communications_cloud_native_core_network_function_cloud_native_environment
1.10.0
pypi/cryptography
0 - 3.2PyPI
Published
Jan 11, 2021
Tracked Since
Feb 18, 2026