Arch Linux Security Advisory ASA-201904-2 ========================================= Severity: Critical Date : 2019-04-05 CVE-ID : CVE-2019-3829 CVE-2019-3836 Package : gnutls Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-945 Summary ======= The package gnutls before version 3.6.7-1 is vulnerable to multiple issues including arbitrary code execution and denial of service. Resolution ========== Upgrade to 3.6.7-1. # pacman -Syu "gnutls>=3.6.7-1" The problems have been fixed upstream in version 3.6.7. Workaround ========== None. Description =========== - CVE-2019-3829 (arbitrary code execution) A critical memory corruption vulnerability has been found in GnuTLS versions prior to 3.6.7, in any API backed by verify_crt(), including gnutls_x509_trust_list_verify_crt() and related routines. Any client or server that verifies X.509 certificates with GnuTLS is likely affected and can be compromised by a malicious server or active network attacker. - CVE-2019-3836 (denial of service) An invalid pointer access via malformed TLS1.3 async messages has been found in GnuTLS versions prior to 3.6.7. Impact ====== A remote attacker can execute arbitrary code on a client or server validating certificates. References ========== https://lists.gnupg.org/pipermail/gnutls-help/2019-March/004497.html https://gitlab.com/gnutls/gnutls/issues/694 https://gitlab.com/gnutls/gnutls/issues/704 https://security.archlinux.org/CVE-2019-3829 https://security.archlinux.org/CVE-2019-3836