CVE-2023-0216

A flaw was found in OpenSSL. An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. This may result in an application crash which could lead to a denial of service. The TLS implementation in OpenSSL does not call this function, however, third party applications might call these functions on untrusted data.

Red Hat Enterprise Linux 6, 7, and 8 ships OpenSSL 1.1.1 and 1.0.2 which do not contain the incorrect code, so those are not affected by this CVE. Similarly, the versions of shim as shipped with Red Hat Enterprise Linux 8 and 9 are not affected by this issue.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.