{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-23931","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2023-01-19T21:12:31.360Z","datePublished":"2023-02-07T20:54:03.628Z","dateUpdated":"2025-11-03T21:47:19.856Z"},"containers":{"cna":{"title":"Cipher.update_into can corrupt memory in pyca cryptography","problemTypes":[{"descriptions":[{"cweId":"CWE-754","lang":"en","description":"CWE-754: Improper Check for Unusual or Exceptional Conditions","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r"},{"name":"https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3","tags":["x_refsource_MISC"],"url":"https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3"}],"affected":[{"vendor":"pyca","product":"cryptography","versions":[{"version":">=1.8, < 39.0.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2023-02-07T20:54:03.628Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-w7pp-m8wf-vj6r","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://security.netapp.com/advisory/ntap-20230324-0007/"},{"name":"https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r","tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r"},{"name":"https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3","tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3"},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00012.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T21:47:19.856Z"}},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-03-10T21:01:11.762140Z","id":"CVE-2023-23931","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-03-10T21:15:21.787Z"}}]}}