This bug was fixed in the package apparmor - 2.13.3-7ubuntu5.2
---------------
apparmor (2.13.3-7ubuntu5.2) focal; urgency=medium
* Add capability upstream patches to fix LP: #1964636
- u/cap1-Generate-CAPABILITIES-in-a-script-due-to-make-4.3.patch: move
code that generates a list of capabilities to a script in common/
- u/cap2-parser-Move-to-a-pre-generated-cap_names.h.patch: use a
pre-generated list of capabilities so that all capabilities are
supported even when building against older kernels.
- u/cap3-parser-cleanup-capability_table-generation-by-droppi.patch: drop
sys_log static declaration because it's already in the generated list.
- u/cap4-parser-unify-capability-name-handling.patch: drop internal
hardcoded capability table.
- u/cap5-parser-Makefile-use-LC_ALL-C-when-invoking-sed.patch: use
LC_ALL=C when invoking sed.
- u/cap6-parser-Add-warning-to-capability_table-about-the-nee.patch: add
warning to capability_table about the need to update the Makefile.
- u/cap7-Add-CAP_BPF-and-CAP_PERFMON-to-severity.db.patch: add
support for cap_bpf and cap_perfmon
- u/cap8-parser-Makefile-fix-generated-cap-comparison-against.patch: fix
generated cap comparison against known list
* Add upstream patches for abi support. LP: #1728130
- u/abi1-parser-feature-abi-setup-parser-to-intersect-policy-.patch: add
the ability to intersect parser and kernel features in the parser.
- u/abi2-parser-add-basic-support-for-feature-abis.patch: add support
to specify a feature abi.
- u/abi3-pin-abi-2.13.patch: add and pin a policy abi for 2.13
- u/abi4-parser-fix-abi-rule-and-pinned-feature-file-interact.patch: fix
abi rule and pinned feature file interaction
- apparmor.install: add 2.13 abi file to be installed in
/etc/apparmor.d/abi/
* Add mqueue patches. LP: #1993353
- u/mqueue1-parser-add-parser-support-for-message-queue-mediatio.patch:
add parser support for mqueue mediation
- u/mqueue2-tests-add-posix-message-queue-regression-tests.patch: add
posix mqueue regression tests
- u/mqueue3-utils-add-message-queue-rules-parsing-in-python-tool.patch:
add support in python tools to parse mqueue rules
- u/mqueue4-parser-add-parser-simple-tests-for-mqueue-rules.patch: add
parser simple tests for mqueue
- u/mqueue5-parser-place-perm-on-name-as-well-as-name-label-comb.patch:
add permissions on name and also on name + label
- u/mqueue6-libapparmor-add-support-for-requested-and-denied-on-.patch:
add parsing support for "denied" and "requested" from audit logs
- u/mqueue7-libapparmor-add-support-for-class-in-logparsing.patch: add
parsing support for "class" from audit logs
- u/mqueue8-utils-add-logparser-support-for-mqueue.patch: add logparser
support for mqueue rules
- u/mqueue9-tests-add-sysv-message-queue-regression-tests.patch: add
sysv mqueue regression tests
- u/mqueue10-parser-enable-mqueue-rules-when-abi-is-not-set.patch:
override pinned features for mqueue rules when abi is not set in policy.
- debian/rules: create mqueue testcase empty files for libapparmor tests.
* Closes LP: #1994146
-- Georgia Garcia <georgia.gar...@canonical.com> Mon, 10 Oct 2022
17:52:45 -0300
** Changed in: apparmor (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1993353
Title:
Add posix message queue IPC mediation
Status in apparmor package in Ubuntu:
New
Status in apparmor source package in Focal:
Fix Released
Status in apparmor source package in Jammy:
Fix Released
Bug description:
[ Impact ]
We need to add IPC mediation support in the userspace tools, starting with
posix message queue.
This would improve security and lower the attack surface for applications
There is already a proposal upstream:
https://gitlab.com/apparmor/apparmor/-/merge_requests/858
[ Test Plan ]
In the merge request in the description there are several tests added.
There are parser tests that can be run with "make -C parser check" in the
project source tree.
There are also tests for the python tools that can be run ith "make -C utils
check" in the project source tree.
There are also regression tests in tests/regression/apparmor. They run with
the whole test suite when you run with "sudo make tests", but they can also be
run individually with "sudo ./posix_mq.sh"
[ Where problems could occur ]
There could be problems related to Bug 1728130, where a policy was developed
for a set of rules supported by a specific kernel, and if new mediation is
available on newer kernels, then there will be some denied rules. Therefore we
need to also prevent that from happening. This is already available in
apparmor-3.+, but for older versions could be done by backporting the abi
patches from
apparmor-3.0.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1993353/+subscriptions
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