Bug 642014

Summary:

SELinux is preventing /opt/drweb/drwebd.real from changing the access protection
of memory on the heap.

Detailed Description:

The drwebd.real application attempted to change the access protection of memory
on the heap (e.g., allocated using malloc). This is a potential security
problem. Applications should not be doing this. Applications are sometimes coded
incorrectly and request this permission. The SELinux Memory Protection Tests
(http://www.akkadia.org/drepper/selinux-mem.html) web page explains how to
remove this requirement. If drwebd.real does not work and you need it to work,
you can configure SELinux temporarily to allow this access until the application
is fixed. Please file a bug report against this package.

Allowing Access:

If you want drwebd.real to continue, you must turn on the allow_execheap
boolean. Note: This boolean will affect all applications on the system.

Fix Command:

setsebool -P allow_execheap=1

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Objects                None [ process ]
Source                        drwebd.real
Source Path                   /opt/drweb/drwebd.real
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-62.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   allow_execheap
Host Name                     (removed)
Platform                      Linux (removed) 2.6.33.3-85.fc13.i686
                              #1 SMP Thu May 6 18:44:12 UTC 2010 i686 i686
Alert Count                   150
First Seen                    Mon 11 Oct 2010 09:11:04 PM CEST
Last Seen                     Mon 11 Oct 2010 09:11:24 PM CEST
Local ID                      f8ab52b3-6509-487b-b0b0-beb4f0d27587
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1286824284.234:1437): avc:  denied  { execheap } for  pid=17623 comm="drwebd.real" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process

node=(removed) type=SYSCALL msg=audit(1286824284.234:1437): arch=40000003 syscall=125 success=no exit=-13 a0=973a000 a1=200 a2=7 a3=972eb90 items=0 ppid=14704 pid=17623 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="drwebd.real" exe="/opt/drweb/drwebd.real" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  allow_execheap,drwebd.real,unconfined_t,unconfined_t,process,execheap
audit2allow suggests:

#============= unconfined_t ==============
#!!!! This avc can be allowed using the boolean 'allow_execheap'

allow unconfined_t self:process execheap;