An issue was discovered in GNOME GLib before 2.78.5, and 2.79.x and 2.80.x before 2.80.1. When a GDBus-based client subscribes to signals from a trusted system service such as NetworkManager on a shared computer, other users of the same computer can send spoofed D-Bus signals that the GDBus-based client will wrongly interpret as having been sent by the trusted system service. This could lead to the GDBus-based client behaving incorrectly, with an application-dependent impact.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-34397
• https://gitlab.gnome.org/GNOME/glib/-/issues/3268
• https://www.openwall.com/lists/oss-security/2024/05/07/5
• https://lists.debian.org/debian-lts-announce/2024/05/msg00008.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRSFYAE5X23TNRWX7ZWEJOMISLCDSYNS
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCDY3KA7G7D3DRXYTT46K6LFHS2KHWBH
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LL6HSJDXCXMLEIJBYV6CPOR4K2NTCTXW
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UNFJHISR4O6VFOHBFWH5I5WWMG37H63A
• https://security.netapp.com/advisory/ntap-20240531-0008