Arch Linux Security Advisory ASA-202005-8 ========================================= Severity: High Date : 2020-05-16 CVE-ID : CVE-2020-1714 Package : keycloak Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-1158 Summary ======= The package keycloak before version 10.0.1-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 10.0.1-1. # pacman -Syu "keycloak>=10.0.1-1" The problem has been fixed upstream in version 10.0.1. Workaround ========== None. Description =========== A flaw was found in Keycloak, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution. Impact ====== An authenticated remote attacker could execute arbitrary code by injecting values into a custom attribute. References ========== https://bugs.archlinux.org/task/66642 https://github.com/keycloak/keycloak/pull/7053 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1714 https://security.archlinux.org/CVE-2020-1714