A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.
https://www.debian.org/security/2022/dsa-5203
https://lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.html
https://lists.debian.org/debian-lts-announce/2022/08/msg00002.html