cve-2023-23931
Vulnerability from cvelistv5
Published
2023-02-07 20:54
Modified
2025-03-10 21:15
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Summary
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.
References
security-advisories@github.comhttps://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3Patch
security-advisories@github.comhttps://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6rExploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6rExploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230324-0007/
Impacted products
Vendor Product Version
pyca cryptography Version: >=1.8, < 39.0.1
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