Arch Linux Security Advisory ASA-202105-26 ========================================== Severity: Medium Date : 2021-05-25 CVE-ID : CVE-2021-33516 Package : gupnp Type : information disclosure Remote : Yes Link : https://security.archlinux.org/AVG-1985 Summary ======= The package gupnp before version 1.2.6-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 1.2.6-1. # pacman -Syu "gupnp>=1.2.6-1" The problem has been fixed upstream in version 1.2.6. Workaround ========== None. Description =========== An issue was discovered in GUPnP before 1.2.5. It allows DNS rebinding. A remote web server can exploit this vulnerability to trick a victim's browser into triggering actions against local UPnP services implemented using this library. Depending on the affected service, this could be used for data exfiltration, data tampering, etc. Impact ====== A remote attacker can use DNS rebinding to trick a victim's browser into triggering actions against local UPnP services. References ========== https://discourse.gnome.org/t/security-relevant-releases-for-gupnp-issue-cve... https://gitlab.gnome.org/GNOME/gupnp/-/issues/24 https://gitlab.gnome.org/GNOME/gupnp/-/merge_requests/13 https://gitlab.gnome.org/GNOME/gupnp/-/commit/ca6ec9dcb26fd7a2a630eb6a681186... https://security.archlinux.org/CVE-2021-33516