Bug 523007 - setroubleshoot: SELinux is preventing /usr/bin/gpg "ipc_lock" access.
Summary: setroubleshoot: SELinux is preventing /usr/bin/gpg "ipc_lock" access.
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: rawhide
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Daniel Walsh
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:8dc178fa71c...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-09-13 10:09 UTC by Nicolas Mailhot
Modified: 2009-09-14 16:13 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-09-14 16:13:49 UTC


Attachments (Terms of Use)

Description Nicolas Mailhot 2009-09-13 10:09:30 UTC
The following was filed automatically by setroubleshoot:

Résumé:

SELinux is preventing /usr/bin/gpg "ipc_lock" access.

Description détaillée:

[gpg has a permissive type (system_cronjob_t). This access was not denied.]

SELinux denied access requested by gpg. It is not expected that this access is
required by gpg 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.

Autoriser l'accès:

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

Informations complémentaires:

Contexte source               system_u:system_r:system_cronjob_t:s0-s0:c0.c1023
Contexte cible                system_u:system_r:system_cronjob_t:s0-s0:c0.c1023
Objets du contexte            None [ capability ]
source                        gpg
Chemin de la source           /usr/bin/gpg
Port                          <Inconnu>
Hôte                         (removed)
Paquetages RPM source         gnupg-1.4.10-1.fc12
Paquetages RPM cible          
Politique RPM                 selinux-policy-3.6.31-3.fc12
Selinux activé               True
Type de politique             targeted
MLS activé                   True
Mode strict                   Enforcing
Nom du plugin                 catchall
Nom de l'hôte                (removed)
Plateforme                    Linux (removed) 2.6.31-2.fc12.x86_64 #1 SMP Thu
                              Sep 10 00:25:40 EDT 2009 x86_64 x86_64
Compteur d'alertes            1
Première alerte              dim. 13 sept. 2009 05:36:47 CEST
Dernière alerte              dim. 13 sept. 2009 05:36:47 CEST
ID local                      dd57837b-8344-4b5d-a1ce-3f2a07f40bf3
Numéros des lignes           

Messages d'audit bruts        

node=(removed) type=AVC msg=audit(1252813007.617:853): avc:  denied  { ipc_lock } for  pid=5957 comm="gpg" capability=14 scontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tcontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tclass=capability

node=(removed) type=SYSCALL msg=audit(1252813007.617:853): arch=c000003e syscall=149 success=yes exit=0 a0=7fbc8ab6c000 a1=8000 a2=3 a3=22 items=0 ppid=5945 pid=5957 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=21 comm="gpg" exe="/usr/bin/gpg" subj=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 key=(null)


audit2allow suggests:

#============= system_cronjob_t ==============
allow system_cronjob_t self:capability ipc_lock;

Comment 1 Nicolas Mailhot 2009-09-13 10:10:23 UTC
triggered by a monthly

/usr/bin/gpg --refresh-keys --keyserver pgpkeys.mit.edu

in the user crontab

Comment 2 Nicolas Mailhot 2009-09-13 10:12:08 UTC
(there are other avcs related to this command, I won't report them just test this)

Comment 3 Daniel Walsh 2009-09-14 16:13:49 UTC
Fixed in selinux-policy-3.6.31-4.fc12.noarch

Adding

	cron_system_entry(gpg_t, gpg_exec_t)

Which should transition system_cronjob_t to gpg, might cause additional avc messages though.


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