NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package python-cryptography Open this link in a new tab

    Threat Intelligence

    EPSS 0.06% (23rd percentile)
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7.5 high
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5.5 medium
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Red Hat
7.5 high

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  • published 30 Nov 2023
  • disclosed 29 Nov 2023


The Debian security team deemed this advisory irrelevant for Debian:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-cryptography package and not the python-cryptography package as distributed by Debian.

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling load_pem_pkcs7_certificates or load_der_pkcs7_certificates could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.