CVE-2021-20232

A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and denial of service.

As mentioned in the upstream advisory and GnuTLS issue 1151 (see External References) this flaw is not easily exploitable and it only happens intermittently (denial of service is not always practical). For this reason, this flaw has been rated as having a security impact of Moderate.

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.