An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function. This will most likely lead to an application crash. This function can be called on public keys supplied from untrusted sources which could allow an attacker to cause a denial of service attack. The TLS implementation in OpenSSL does not call this function but applications might call the function if there are additional security requirements imposed by standards such as FIPS 140-3.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: openssl

Published: 2023-02-08T19:02:48.524Z

Updated: 2024-08-02T05:02:43.920Z

Reserved: 2023-01-11T12:02:46.441Z

Link: CVE-2023-0217

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-02-08T20:15:24.213

Modified: 2024-02-04T09:15:09.040

Link: CVE-2023-0217

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-02-07T00:00:00Z

Links: CVE-2023-0217 - Bugzilla