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CVE-2023-49083

MEDIUM

5.9

Description

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.

CVE Details

CVSS v3.1 Score5.9

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published11/29/2023

Last Modified11/3/2025

Sourcenvd

Honeypot Sightings0

Affected Products

cryptography.io:cryptography

Weaknesses (CWE)

CWE-476

References

https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a(security-advisories@github.com)

https://github.com/pyca/cryptography/pull/9926(security-advisories@github.com)

https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97(security-advisories@github.com)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/(security-advisories@github.com)

https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/pyca/cryptography/pull/9926(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2024/10/msg00012.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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