Bug 512605

Summary: selinux policy allows addr 0 mappings by default
Product: [Fedora] Fedora Reporter: Rahul Sundaram <sundaram>
Component: selinux-policyAssignee: Daniel Walsh <dwalsh>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: dwalsh, eteo, ma, mgrepl, mishu, mjc, mmalik, nsoranzo, ohudlick, pm-rhel, security-response-team, smohan, syeghiay, vmayatsk
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 511143 Environment:
Last Closed: 2009-07-20 20:38:43 UTC Type: ---
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: 511143    
Bug Blocks:    

Description Rahul Sundaram 2009-07-19 19:18:08 UTC 
+++ This bug was initially created as a clone of Bug #511143 +++

I have a fix for this in selinux-policy-2.4.6-252.el5

--- Additional comment from eteo on 2009-07-17 06:53:30 EDT ---

The default SELinux policy allows processes in the unconfined domains to map low memory in the kernel. We are updating the selinux-policy package to allow the user to set the allow_unconfined_mmap_low boolean, and to prevent unconfined_t from being able to map low memory in the kernel. No Relabel or Reboot required.
Comment 1 Daniel Walsh 2009-07-20 20:38:43 UTC 
Fixed in selinux-policy-3.6.22-2.fc12
Comment 2 Rahul Sundaram 2009-07-20 20:50:18 UTC 
Dan,

I think you should push the policy update to Fedora 11 and Fedora 10 as well.
Comment 3 Daniel Walsh 2009-07-21 01:22:49 UTC 
Miroslav is preparing updates for F10 and F11.