CVE-2023-49083

2023-12-2011:10:52

redhat.com

access.redhat.com

python-cryptography

pkcs7 certificates

null-pointer dereference

denial of service

system availability

stability

red hat product security

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

9.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.1%

JSON

A null-pointer dereference vulnerability was found in python-cryptography during the loading of PKCS7 certificates. Invoking “load_pem_pkcs7_certificates” or “load_der_pkcs7_certificates” can trigger this issue and lead to subsequent segmentation fault and result in a Denial of Service (DoS) for any application aiming to deserialize a PKCS7 blob or certificate. The potential impact includes disruptions in system availability and stability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.