CVE-2018-6560 Security feature bypass in n/a
Attackers can escape the Flatpak sandbox by sending crafted D-Bus messages due to inconsistent whitespace handling in the proxy.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-6560?
CVE-2018-6560 is a high-severity vulnerability in Redhat Enterprise Linux Desktop, published on 2 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.
Weakness: CWE-436
Which versions are affected by CVE-2018-6560?
It affects 7 products.
Linux distribution packages (15)
flatpak Red Hat:enterprise_linux:7::client | All versions | 0:0.8.8-4.el7_5 |
flatpak-builder Red Hat:enterprise_linux:7::client | All versions | 0:0.8.8-4.el7_5 |
flatpak-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:0.8.8-4.el7_5 |
flatpak-devel Red Hat:enterprise_linux:7::client | All versions | 0:0.8.8-4.el7_5 |
flatpak-libs Red Hat:enterprise_linux:7::client | All versions | 0:0.8.8-4.el7_5 |
flatpak Red Hat:enterprise_linux:7::server | All versions | 0:0.8.8-4.el7_5 |
flatpak-builder Red Hat:enterprise_linux:7::server | All versions | 0:0.8.8-4.el7_5 |
flatpak-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:0.8.8-4.el7_5 |
flatpak-devel Red Hat:enterprise_linux:7::server | All versions | 0:0.8.8-4.el7_5 |
flatpak-libs Red Hat:enterprise_linux:7::server | All versions | 0:0.8.8-4.el7_5 |
flatpak Red Hat:enterprise_linux:7::workstation | All versions | 0:0.8.8-4.el7_5 |
flatpak-builder Red Hat:enterprise_linux:7::workstation | All versions | 0:0.8.8-4.el7_5 |
flatpak-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:0.8.8-4.el7_5 |
flatpak-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:0.8.8-4.el7_5 |
flatpak-libs Red Hat:enterprise_linux:7::workstation | All versions | 0:0.8.8-4.el7_5 |
Products include Flatpak Flatpak, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus, Redhat Enterprise Linux Server Tus and 1 more.
How do I fix CVE-2018-6560?
Upgrade to a fixed version.
Is CVE-2018-6560 being exploited?
There is no known exploitation of CVE-2018-6560 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux Desktop
- CVE-2023-28100 TIOCLINUX can send commands outside sandbox if running on a virtual console
- CVE-2026-34078 Flatpak has a complete sandbox escape leading to host file access and code execution in the host context
- CVE-2019-10063 Security feature bypass in n/a
- CVE-2026-34079 Flatpak affected by arbitrary file deletion on the host filesystem
- CVE-2023-28101 Flatpak metadata with ANSI control codes can cause misleading terminal output
Sources
Also known as DEBIAN-CVE-2018-6560, GHSA-5xcx-r88v-8v7g, MGASA-2018-0143, RHSA-2018:2766.