Bug 628941 - SELinux is preventing /usr/sbin/uucico "write" access on /var/lock/uucp.
Summary: SELinux is preventing /usr/sbin/uucico "write" access on /var/lock/uucp.
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 12
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:d3211c251d9...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-08-31 13:28 UTC by Ian Lance Taylor
Modified: 2010-10-14 06:34 UTC (History)
2 users (show)

Fixed In Version: selinux-policy-3.6.32-123.fc12
Clone Of:
Environment:
Last Closed: 2010-10-14 06:34:27 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Ian Lance Taylor 2010-08-31 13:28:01 UTC
Summary:

SELinux is preventing /usr/sbin/uucico "write" access on /var/lock/uucp.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by uucico. It is not expected that this access
is required by uucico and this access may signal an intrusion attempt. It is
also possible that the specific version or configuration of the application is
causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:qmail_local_t:s0
Target Context                system_u:object_r:uucpd_lock_t:s0
Target Objects                /var/lock/uucp [ dir ]
Source                        uucico
Source Path                   uucico
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           uucp-1.07-20.fc12
Target RPM Packages           uucp-1.07-20.fc12
Policy RPM                    selinux-policy-3.6.32-118.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.32.11-99.fc12.x86_64 #1
                              SMP Mon Apr 5 19:59:38 UTC 2010 x86_64 x86_64
Alert Count                   29
First Seen                    Mon 10 May 2010 08:44:30 AM PDT
Last Seen                     Tue 20 Jul 2010 01:40:15 AM PDT
Local ID                      ba97f6c6-6ce1-4386-9c24-a07b43958d31
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1279615215.985:129366): avc:  denied  { write } for  pid=7431 comm="uucico" name="uucp" dev=dm-0 ino=1778171 scontext=system_u:system_r:qmail_local_t:s0 tcontext=system_u:object_r:uucpd_lock_t:s0 tclass=dir

node=(removed) type=AVC msg=audit(1279615215.985:129366): avc:  denied  { add_name } for  pid=7431 comm="uucico" name="TMP0000001d07" scontext=system_u:system_r:qmail_local_t:s0 tcontext=system_u:object_r:uucpd_lock_t:s0 tclass=dir

node=(removed) type=AVC msg=audit(1279615215.985:129366): avc:  denied  { create } for  pid=7431 comm="uucico" name="TMP0000001d07" scontext=system_u:system_r:qmail_local_t:s0 tcontext=system_u:object_r:uucpd_lock_t:s0 tclass=file

node=(removed) type=AVC msg=audit(1279615215.985:129366): avc:  denied  { write open } for  pid=7431 comm="uucico" name="TMP0000001d07" dev=dm-0 ino=1777712 scontext=system_u:system_r:qmail_local_t:s0 tcontext=system_u:object_r:uucpd_lock_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1279615215.985:129366): arch=c000003e syscall=85 success=yes exit=128 a0=26cf6b0 a1=1a4 a2=0 a3=3b items=0 ppid=1 pid=7431 auid=4294967295 uid=10 gid=501 euid=10 suid=10 fsuid=10 egid=14 sgid=14 fsgid=14 tty=(none) ses=4294967295 comm="uucico" exe="/usr/sbin/uucico" subj=system_u:system_r:qmail_local_t:s0 key=(null)



Hash String generated from  catchall,uucico,qmail_local_t,uucpd_lock_t,dir,write
audit2allow suggests:

#============= qmail_local_t ==============
#!!!! The source type 'qmail_local_t' can write to a 'dir' of the following types:
# user_home_t, qmail_alias_home_t, dovecot_spool_t, user_home_dir_t, mail_spool_t, nfs_t

allow qmail_local_t uucpd_lock_t:dir { write add_name };
#!!!! The source type 'qmail_local_t' can write to a 'file' of the following types:
# user_home_t, qmail_alias_home_t, dovecot_spool_t, mail_spool_t, nfs_t

allow qmail_local_t uucpd_lock_t:file { write create open };

Comment 1 Ian Lance Taylor 2010-08-31 13:29:39 UTC
This is an ordinary use of uucico.

Comment 2 Daniel Walsh 2010-08-31 13:56:04 UTC
This looks like we have to add

optional_policy(`
	uucp_domtrans(qmail_local_t)
')

########################################
## <summary>
##	Execute the uucico program in the
##	uucpd_t domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`uucp_domtrans',`
	gen_require(`
		type uucpd_t, uucpd_exec_t;
	')

	domtrans_pattern($1, uucpd_exec_t, uucpd_t)
')

Comment 3 Miroslav Grepl 2010-09-01 10:03:57 UTC
Fixed in selinux-policy-3.7.19-53.fc13

Comment 4 Miroslav Grepl 2010-09-01 12:29:08 UTC
Fixed in  selinux-policy-3.6.32-122.fc12.

Comment 5 Fedora Update System 2010-10-01 08:48:57 UTC
selinux-policy-3.6.32-123.fc12 has been submitted as an update for Fedora 12.
https://admin.fedoraproject.org/updates/selinux-policy-3.6.32-123.fc12

Comment 6 Fedora Update System 2010-10-05 09:33:27 UTC
selinux-policy-3.6.32-123.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update selinux-policy'.  You can provide feedback for this update here: https://admin.fedoraproject.org/updates/selinux-policy-3.6.32-123.fc12

Comment 7 Fedora Update System 2010-10-14 06:33:38 UTC
selinux-policy-3.6.32-123.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.