https://seclists.org/oss-sec/2023/q4/248: Python Cryptography advisory: CVE-2023-49083 NULL-dereference when loading PKCS7 certificates
Published Nov 29, 2023
·Updated
Affected Software
1 affected component
Python Cryptography<41.0.6, >=3.1
Frequently Asked Questions
1
What is the severity of CVE-2023-49083?
CVE-2023-49083 is considered a high severity vulnerability due to the potential for NULL-dereference issues when loading PKCS7 certificates.
2
How do I fix CVE-2023-49083?
To fix CVE-2023-49083, upgrade your Python Cryptography library to version 41.0.6 or later.
3
Which versions of Python Cryptography are affected by CVE-2023-49083?
CVE-2023-49083 affects Python Cryptography versions 3.1 and later up to, but not including, version 41.0.6.
4
What type of vulnerability is CVE-2023-49083?
CVE-2023-49083 is a NULL-dereference vulnerability related to the handling of PKCS7 certificates.
5
Is there a proof of concept for CVE-2023-49083?
Yes, a proof of concept for exploiting CVE-2023-49083 is available that demonstrates how to trigger the NULL-dereference issue.