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| Name: bubblewrap | Distribution: SUSE Linux Framework One |
| Version: 0.10.0 | Vendor: SUSE LLC <https://www.suse.com/> |
| Release: slfo.1.1.2 | Build date: Wed Aug 14 19:02:31 2024 |
| Group: Productivity/Security | Build host: reproducible |
| Size: 120577 | Source RPM: bubblewrap-0.10.0-slfo.1.1.2.src.rpm |
| Packager: https://www.suse.com/ | |
| Url: https://github.com/containers/bubblewrap | |
| Summary: Core execution tool for unprivileged containers | |
Bubblewrap (/usr/bin/bwrap) is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces.
LGPL-2.0-or-later
* Wed Aug 14 2024 bjorn.lie@gmail.com
- Update to version v0.10.0:
* New features: Add the --[ro-]bind-fd option, which can be used
to mount a filesystem represented by a file descriptor without
time-of-check/time-of-use attacks. This is needed when
resolving security issue in Flatpak.
(CVE-2024-42472, bsc#1229157)
* Other changes: Fix some confusing syntax in SetupOpFlag (no
functional change).
* Tue Apr 02 2024 wolfgang.frisch@suse.com
- update to v0.9.0:
* Build system changed to Meson from Autotools
* Add --argv0
https://github.com/containers/bubblewrap/issues/91
* --symlink is now idempotent, meaning it succeeds if the symlink already
exists and already has the desired target
* Clarify security considerations in documentation
* Clarify documentation for --cap-add
* Report a better error message if mount(2) fails with ENOSPC
* Fix a double-close on error reading from --args, --seccomp or
- -add-seccomp-fd argument
* Improve memory allocation behaviour
* Mon Mar 27 2023 andreas.stieger@gmx.de
- update to v0.8.0:
* Add --disable-userns option to prevent the sandbox from
creating its own nested user namespace
* Add --assert-userns-disabled option to check that an existing
userns was created with --disable-userns
* Give a clearer error message if the kernel doesn't have
CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER
* Wed Dec 07 2022 dmueller@suse.com
- update to v0.7.0:
* --size option controls the size of a subsequent --tmpfs (#509)
* Better error messages if a mount operation fails (#472)
* Better error message if creating the new user namespace fails with
ENOSPC (#487)
* When building as a Meson subproject, a RUNPATH can be set on the
executable to make it easier to bundle its libcap dependency
* Fix test failures when running as uid 0 but with limited capabilities
(#510)
* Use POSIX command -v in preference to non-standard which (#527)
* Fix a copy/paste error in --help (#531)
* Wed May 18 2022 dimstar@opensuse.org
- Update to version 0.6.2:
+ New features in Meson build:
- Auto-detect whether the man page can be generated.
- -Dbwrapdir=... changes the installation directory (useful
when being used as a subproject).
- -Dtests=false disables unit tests.
+ Bug fixes:
- Add --add-seccomp-fd to shell completions
- Document --add-seccomp-fd, --json-status-fd and --share-net
in the man page
- Add attributes to silence various compiler warnings
- Allow compilation of tests with musl on mips architectures
- Allow compilation with older glibc
- Disable sanitizers for a test helper whose seccomp profile
breaks the instrumentation
- Disable AddressSanitizer leak detection where it interferes
with unit testing
* Fri Mar 04 2022 sebix+novell.com@sebix.at
- Update to 0.6.1:
- Add a release checklist
- completions: Make zsh completion non-executable
The Autotools build system installed it with 0644 permissions because
it's listed as DATA, but the Meson build system installs executable
files as executable by default.
zsh completions don't need to be executable to work, and this one doesn't
have the `#!` marker that should start an executable script.
- update to 0.6.0:
- meson: Improve compatibility with Meson 0.49
That version doesn't allow more than two arguments for define_variable.
- Disable test-specifying-pidns.sh under 'meson dist' while I investigate
This test is hanging when run under 'meson dist' for some reason, but
not when run under 'meson test', and not locally, only in the Github
Workflow-based CI. Disable it for now.
- meson: Actually build and run the tests
- tests: Fix compiler warnings for unused arguments
- meson: Run test scripts from $srcdir
- meson: Make G_TEST_SRCDIR, G_TEST_BUILDDIR match Autotools
- meson: Run the Python test script with Python, not bash
The python build option can be used to swap to a different interpreter,
for environments like the Steam Runtime where the python3 executable in
the PATH is extremely old but there is a better interpreter available.
This is treated as non-optional, because Meson is written in Python,
so the situation where there is no Python interpreter at build-time
shouldn't arise.
- meson: Build the try-syscall helper
- meson: Build tests with equivalent of -I$(top_srcdir) -I$(top_builddir)
- meson.build: Remove unnecessary check for sh
- Add a Meson build system
This allows bwrap to be built as a subproject in larger Meson projects.
When built as a subproject, we install into the --libexecdir and
require a program prefix to be specified: for example, Flatpak would use
program_prefix=flatpak- to get /usr/libexec/flatpak-bwrap. Verified to
be backwards-compatible as far as Meson 0.49.0 (Debian 9 backports).
Loosely based on previous work by Jussi Pakkanen (see #133).
Differences between the Autotools and Meson builds:
The Meson build requires a version of libcap that has pkg-config
metadata (introduced in libcap 2.23, in 2013).
The Meson build has no equivalent of --with-priv-mode=setuid. On
distributions like Debian <= 10 and RHEL <= 7 that require a setuid bwrap
executable, the sysadmin or distribution packaging will need to set the
correct permissions on the bwrap executable; Debian already did this via
packaging rather than the upstream build system.
The Meson build supports being used as a subproject, and there is CI
for this. It automatically disables shell completions and man pages,
moves the bubblewrap executable to ${libexecdir}, and renames the
bubblewrap executable according to a program_prefix option that the
caller must specify (for example, Flatpak would use
- Dprogram_prefix=flatpak- to get /usr/libexec/flatpak-bwrap). See the
tests/use-as-subproject/ directory for an example.
- Use HEAD to refer to other projects' default branches in documentation
This makes the URL independent of the name they have chosen for their
default branches.
- workflows: Update for rename of default branch to main
- tests: Exercise seccomp filters
- Allow loading more than one seccomp program
This will allow Flatpak to combine an allow-list (default-deny) of
known system calls with a deny-list (default-allow) of system calls
that are undesired.
Resolves: https://github.com/containers/bubblewrap/issues/453
- Generalize linked lists of LockFile and SetupOp
I'm about to add a third linked list, for seccomp programs, which would
seem like too much duplication.
- Handle argc == 0 better
Unfortunately it's possible for argc to be 0, so error out pretty early
on in that case. I don't think this is a security issue in this case.
- Fix typo
- Remove trailing whitespace
- Fix spelling
- bash: Fix shellcheck warnings
- bash: Invoke bash using /usr/bin/env
- bubblewrap: Avoid a -Wjump-misses-init false-positive
When building with -Wjump-misses-init as part of a larger project, gcc
reports that we jump past initialization of cover_proc_dirs. This is
technically true, but we only use this variable in the case where it's
initialized, so that's harmless.
However, we can avoid this altogether by making the array static and
constant, which allows it to be moved from initialized data to read-only
data.
- bind-mount: Be more const-correct
When compiled with -Wwrite-strings as part of a larger project, gcc and
clang both warn that we're assigning a string constant to a mutable
struct member. There's actually no reason why it should be mutable, so
make it const.
- die_with_error: Save errno sooner
We need to save errno immediately, otherwise it could be overwritten
by a failing library call somewhere in the implementation of fprintf.
- main: Warn when non-repeatable options are repeated
A user might reasonably expect that `bwrap --seccomp 3 --seccomp 4 ...`
would load seccomp programs from both fds 3 and 4, but in fact it only
loads the program from fd 4.
Helps: https://github.com/containers/bubblewrap/issues/453
Resolves: https://github.com/containers/bubblewrap/issues/454
- utils: Add warn()
- Add SPDX-License-Identifier for files that already specify license
This is a step towards REUSE compliance. Third-party files that we do
not otherwise edit (git.mk, m4/attributes.m4) are excluded here.
- tests: Use preferred spelling for SPDX license identifiers
- Remove obsolete .travis.yml
We no longer use Travis-CI.
- Remove obsolete papr CI
We no longer use this.
* Mon Sep 20 2021 bjorn.lie@gmail.com
- Update to version 0.5.0:
+ New features:
- --chmod changes permissions
- --clearenv unsets every environment variable (except PWD)
- --perms sets permissions for one subsequent --bind-data,
- -dir, --file, --ro-bind-data or --tmpfs
+ Other enhancements:
- Better diagnostics when a --bind or other bind-mount fails
- zsh tab-completion
- Better test coverage
+ Bug fixes:
- Use Python 3 for tests and examples
- Mount points for non-directories are created with permissions
- r--r--r-- instead of -rw-rw-rw-
- Don't remount items in /proc read-only if already EROFS,
required to run under Docker
- Allow mounting an non-directory over an existing
non-directory, e.g. --bind "$XDG_RUNTIME_DIR/my-log-socket"
/dev/log
- Silence kernel messages for our bind-mounts
- Make sure pkg-config is checked for, regardless of build
options
- Improve ability to bind-mount directories on case-insensitive
filesystems
- Fix -Wshadow warnings
- Fix deprecation warnings with newer SELinux
- Add new subpackage bubblewrap-zsh-completion
* Wed Apr 01 2020 sebix+novell.com@sebix.at
- Update to version 0.4.1:
* retcode: fix return code with syncfd and no event_fd
* Ensure we're always clearing the cap bounding set
* tests: Update output patterns for libcap >= 2.29
* Don't rely on geteuid() to know when to switch back from setuid root
* Don't support --userns2 in setuid mode
* fixes CVE-2020-5291
* fixes bsc#1168291
* Fri Dec 20 2019 bjorn.lie@gmail.com
- Update to version 0.4.0:
+ The biggest feature in this release is the support for joining
existing user and pid namespaces. This doesn't work in the
setuid mode (at the moment).
+ Other changes:
- Stores namespace info in status json.
- In setuid mode pid 1 is now marked dumpable.
- Now builds with musl libc.
* Fri Jun 07 2019 alarrosa@suse.com
- Use /bin/bash instead of /usr/bin/bash in SLE12
* Sat Jun 01 2019 sebix+novell.com@sebix.at
- Update to version 0.3.3:
- This release is the same as 0.3.2 but the version number in configure.ac
was accidentally still set to 0.3.1
- Update to version 0.3.2:
- fixes boo#1136958 / CVE-2019-12439
This release fixes a mostly theoretical security issue in unusual/broken
setups where `$XDG_RUNTIME_DIR` is unset.
There are some other smaller fixes, as well as an addition to the JSON
API that allows reading the inner process exit code, separately from
the `bwrap` exit code.
- Print "Out of memory" on stderr, not stdout
- bwrap: add option json-status-fd to show child exit code
- bwrap: Report COMMAND exit code in json-status-fd
- man page: Describe --chdir, not nonexistent --cwd
- Don't create our own temporary mount point for pivot_root
- Make lockdata long enough on 32-bit with 64-bit file pointers.
* Thu Oct 11 2018 alarrosa@suse.com
- update to version 0.3.1:
* New feature in this release is --bind-try (as well as --dev-bind-try
and --ro-bind-try) which works like the regular versions if the source
exists, but does nothing if it doesn't exist.
* The mount type for the root tmpfs was also changed to "tmpfs" instead
of being empty, as the later could cause problems with some programs
when parsing the mountinfo files in /proc.
* Sat Jul 14 2018 sebix+novell.com@sebix.at
- update to version 0.3.0:
* The biggest feature from this release is that bwrap
now supports being invoked recursively (from other container
runtimes such as Docker/podman/runc as well as bwrap itself)
when user namespaces are enabled, and the outer container manager
allows it (Docker's default seccomp policy doesn't).
* This is useful for testing scenarios; for example a project
uses Kubernetes for its CI, but inside build the project wants to run
each unit test in their own pid namespace, without going out
and creating a new pod for every single unit test.
* Similarly, rpm-ostree compose tree uses bwrap internally for scripts,
and we want to support running rpm-ostree inside a container as well.
* Another feature is bwrap now supports -- to terminate argument
parsing. To detect availablity of this, you could parse bwrap --version.
* Tue May 01 2018 sebix+novell.com@sebix.at
- update to version 0.2.1:
* All the demos are included
* bugfixes for the demo files
* There was an issue with mkdir when running bubblewrap on an NFS
filesystem that has been fixed, so flatpak now works on NFS shares.
* Some leaks have been fixed, including a file descriptor leak.
* Mon Oct 09 2017 sebix+novell.com@sebix.at
- update to version 0.2.0
- bwrap now automatically detects the new
user namespace restrictions in Red Hat Enterprise Linux 7.4:
bubblewrap: check for max_user_namespaces == 0.
- The most notable features are new arguments --as-pid1, and
- -cap-add/--cap-drop. These were added for running systemd (or in general a
"full" init system) inside bubblewrap. But the capability options are also
useful for unprivileged callers to potentially retain capbilities inside the
sandbox (for example CAP_NET_ADMIN), when user namespaces are enabled.
Conversely, privileged callers (uid 0) can conversely drop capabilities (without
user namespaces). Contributed by Giuseppe Scrivano.
- With --dev, add /dev/fd and /dev/core symlinks
which should improve compatibility with older software.
* Mon Sep 18 2017 sebix+novell.com@sebix.at
- add group
* Fri Jul 07 2017 sebix+novell.com@sebix.at
- fix build macro with rpm < 4.12 (non-Factory currently)
* Thu May 25 2017 sebix+novell.com@sebix.at
- update to version 0.1.8
- New --die-with-parent which is based on the Linux prctl(PR_SET_PDEATHSIG) API.
- smaller bugfixes
* Thu Mar 02 2017 sebix+novell.com@sebix.at
- upgrade to upstream version 0.1.7
- note that this package was *never* affected by CVE-2017-5226
as it was introduced in version 0.1.6
- upstream changelog of version 0.1.7:
This release backs out the change in 0.1.6 which unconditionally
called setsid() in order to fix a security issue with TIOCSTI, aka
CVE-2017-522. That change caused some behavioural issues that are
hard to work with in some cases. For instance, it makes shell job
control not work for the bwrap command.
Instead there is now a new option --new-session which works like
0.1.6. It is recommended that you use this if possible, but if not we
recommended that you neutralize this some other way, for instance
using SECCOMP, which is what flatpak does:
https://github.com/flatpak/flatpak/commit/902fb713990a8f968ea4350c7c2a27ff46f1a6c4
In order to make it easy to create maximally safe sandboxes we have
also added a new commandline switch called --unshare-all. It unshares
all possible namespaces and is currently equivalent with:
- -unshare-user-try --unshare-ipc --unshare-pid --unshare-net
- -unshare-uts --unshare-cgroup-try
However, the intent is that as new namespaces are added to the kernel they will
be added to this list. Additionally, if --share-net is specified the network
namespace is not unshared.
This release also has some bugfixes:
bwrap reaps (unexpected) children that are inherited from the
parent, something which can happen if bwrap is part of a shell
pipeline.
bwrap clears the capability bounding set. The permitted
capabilities was already empty, and use of PR_NO_NEW_PRIVS should
make it impossible to increase the capabilities, but more
layers of protection is better.
The seccomp filter is now installed at the very end of bwrap, which
means the requirement of the filter is minimal. Any bwrap seccomp
filter must at least allow: execve, waitpid and write
Alexander Larsson (7):
Handle inherited children dying
Clear capability bounding set
Make the call to setsid() optional, with --new-session
demos/bubblewrap-shell.sh: Unshare all namespaces
Call setsid() and setexeccon() befor forking the init monitor
Install seccomp filter at the very end
Bump version to 0.1.7
Colin Walters (6):
Release 0.1.6
man: Correct namespace user -> mount
demo/shell: Add /var/tmp compat symlink, tweak PS1, add more docs
Release 0.1.6
ci: Combine ASAN and UBSAN
Add --unshare-all and --share-net
- upstream changelog for 0.1.6:
This fixes a security issue with TIOCSTI, aka CVE-2017-522. Note bubblewrap is
far from the only program that has this issue, and I think the best fix is
probably in the kernel to support disabling this ioctl.
Programs can also work around this by calling setsid() on their own in an exec
handler before doing an exevp("bwrap").
- upstream changelog for 0.1.5:
This is a bugfix release, here are the major changes:
Running bubblewrap as root now works again
Various fixes for the testsuite
Use same default compiler warnings as ostree
Handle errors resolving symlinks during bind mounts
Alexander Larsson (2):
bind-mount: Check for errors in realpath()
Bump version to 0.1.5
Colin Walters (6):
Don't call capset() unless we need to
Only --unshare-user automatically if we're not root
ci: Modernize a bit, add f25-ubsan
README.md: Update with better one liner and more information
utils: Add __attribute__((printf)) to die()
build: Sync default warning -> error set from ostree
Simon McVittie (4):
test-run: be a bash script
test-run: don't assume we are uid 1000
Adapt tests so they can be run against installed binaries
Fix incorrect nesting of backticks when finding a FUSE mount
* Fri Dec 16 2016 sebix+novell.com@sebix.at
- upgrade to upstream version 0.1.4
- Build also for Leap 42.2
* Fri Oct 14 2016 walters@verbum.org
- New upstream version
* Mon Sep 12 2016 klember@redhat.com
- Update to 0.1.2
* Tue Jul 12 2016 ignatenko@redhat.com
- Trivial fixes in packaging
* Fri Jul 08 2016 walters@verbum.org
- Initial package
/usr/bin/bwrap /usr/share/bash-completion /usr/share/bash-completion/completions /usr/share/bash-completion/completions/bwrap /usr/share/doc/packages/bubblewrap /usr/share/doc/packages/bubblewrap/README.md /usr/share/doc/packages/bubblewrap/demos /usr/share/doc/packages/bubblewrap/demos/bubblewrap-shell.sh /usr/share/doc/packages/bubblewrap/demos/flatpak-run.sh /usr/share/doc/packages/bubblewrap/demos/flatpak.bpf /usr/share/doc/packages/bubblewrap/demos/userns-block-fd.py /usr/share/licenses/bubblewrap /usr/share/licenses/bubblewrap/COPYING /usr/share/man/man1/bwrap.1.gz
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