containers/bubblewrap

containers/bubblewrap

on GitHub

https://github.com/containers/bubblewrap

24 releases

new releases every 4 months 2 days

last release was 03/26/2024

last checked today at 8:37 PM

3633

Low-level unprivileged sandboxing tool used by Flatpak and similar projects

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CVE History

CVE	Published	CVSS v2	CVSS v3
CVE-2020-5291	March 31, 2020	7.8 HIGH	8.5 HIGH
Bubblewrap (bwrap) before version 0.4.1, if installed in setuid mode and the kernel supports unprivileged user namespaces, then the `bwrap --userns2` option can be used to make the setuid process keep running as root while being traceable. This can in turn be used to gain root permissions. Note that this only affects the combination of bubblewrap in setuid mode (which is typically used when unprivileged user namespaces are not supported) and the support of unprivileged user namespaces. Known to be affected are: * Debian testing/unstable, if unprivileged user namespaces enabled (not default) * Debian buster-backports, if unprivileged user namespaces enabled (not default) * Arch if using `linux-hardened`, if unprivileged user namespaces enabled (not default) * Centos 7 flatpak COPR, if unprivileged user namespaces enabled (not default) This has been fixed in the 0.4.1 release, and all affected users should update.
CVE-2019-12439	May 29, 2019	7.8 HIGH	4.6 MEDIUM
bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code.
CVE-2016-8659	February 13, 2017	7 HIGH	6.9 MEDIUM
Bubblewrap before 0.1.3 sets the PR_SET_DUMPABLE flag, which might allow local users to gain privileges by attaching to the process, as demonstrated by sending commands to a PrivSep socket.