CVE-2023-2975
CVSS Score of 10 (low)
Details
Summary
CVE-2023-2975 is a vulnerability in the AES-SIV cipher implementation in OpenSSL, affecting various products. The bug causes the algorithm to ignore empty associated data entries, leading to a lack of authentication for such entries. Although there are currently no known applications affected by this issue, it poses a potential danger for applications that use the AES-SIV algorithm and rely on authenticating empty data entries. To remediate this vulnerability, developers need to ensure that the application calls EVP_EncryptUpdate() or EVP_CipherUpdate() with a NULL pointer as the output buffer and 0 as the input buffer length to properly authenticate empty data. This vulnerability has a base severity rating of "MEDIUM" and an impact score of 1.4 out of 10 according to NVD@NIST.
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