Bug 1752843
| Summary: | SELinux interferes with various lp* commands executed by sysadm_u user | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Milos Malik <mmalik> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.1 | CC: | lvrabec, mmalik, nknazeko, plautrba, ssekidde, zpytela |
| Target Milestone: | rc | Keywords: | AutoVerified, FutureFeature, Patch |
| Target Release: | 8.2 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.14.3-22.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-04-28 16:41:06 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1778780 | ||
Actual results (permissive mode):
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type=USER_AVC msg=audit(09/17/2019 07:29:20.873:491) : pid=658 uid=dbus auid=unset ses=unset subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc: denied { send_msg } for msgtype=method_call interface=org.freedesktop.DBus.Peer member=Ping dest=org.freedesktop.Avahi spid=6456 tpid=6300 scontext=sysadm_u:sysadm_r:lpr_t:s0-s0:c0.c1023 tcontext=system_u:system_r:avahi_t:s0 tclass=dbus permissive=1 exe=/usr/bin/dbus-daemon sauid=dbus hostname=? addr=? terminal=?'
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type=USER_AVC msg=audit(09/17/2019 07:29:20.874:492) : pid=658 uid=dbus auid=unset ses=unset subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc: denied { send_msg } for msgtype=method_return dest=:1.77 spid=6300 tpid=6456 scontext=system_u:system_r:avahi_t:s0 tcontext=sysadm_u:sysadm_r:lpr_t:s0-s0:c0.c1023 tclass=dbus permissive=1 exe=/usr/bin/dbus-daemon sauid=dbus hostname=? addr=? terminal=?'
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Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:1773 |
Description of problem: Version-Release number of selected component (if applicable): cups-2.2.6-27.el8.x86_64 cups-client-2.2.6-27.el8.x86_64 cups-filesystem-2.2.6-27.el8.noarch cups-filters-1.20.0-16.el8.x86_64 cups-filters-libs-1.20.0-16.el8.x86_64 cups-libs-2.2.6-27.el8.x86_64 selinux-policy-3.14.3-19.el8.noarch selinux-policy-targeted-3.14.3-19.el8.noarch How reproducible: * always Steps to Reproduce: 1. get a RHEL-8.1 machine (targeted policy is active) 2. create a sysadm_u user and set its password 3. log in as the sysadm_u user 4. run following commands: $ lpstat -selt $ lpq -a -l $ lpoptions -l $ lpinfo -m -v Actual results (enforcing mode): ---- type=USER_AVC msg=audit(09/17/2019 07:18:30.680:445) : pid=658 uid=dbus auid=unset ses=unset subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc: denied { send_msg } for msgtype=method_call interface=org.freedesktop.DBus.Peer member=Ping dest=org.freedesktop.Avahi spid=6369 tpid=6300 scontext=sysadm_u:sysadm_r:lpr_t:s0-s0:c0.c1023 tcontext=system_u:system_r:avahi_t:s0 tclass=dbus permissive=0 exe=/usr/bin/dbus-daemon sauid=dbus hostname=? addr=? terminal=?' ---- Expected results: * no SELinux denials Additional information: * in order to see these SELinux denials, the avahi-daemon service needs to be running