CVE-2023-5363

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Oct 25, 2023
Updated: Feb 1, 2024

Summary

The vulnerability with the CVE ID name CVE-2023-5363 affects multiple products including RC2, RC4, RC5, CCM, GCM, and OCB. It is caused by a bug in the processing of key and initialization vector (IV) lengths, which can lead to truncation or overruns during the initialization of some symmetric ciphers. The potential danger it poses to an organization is the loss of confidentiality for certain cipher modes due to non-uniqueness resulting from IV truncation. To remediate this vulnerability, users should ensure that alterations to the key length and IV length within the OSSL_PARAM array take effect as intended when calling EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2(), or EVP_CipherInit_ex2(). This vulnerability has a base severity rating of HIGH and a base score of 7.5 according to NVD@NIST.

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