Bug 494074 (CVE-2009-1336)

Summary: CVE-2009-1336 kernel: nfsv4 client can be crashed by stating a long filename
Product: [Other] Security Response Reporter: Eugene Teo (Security Response) <eteo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dhoward, jiali, jlayton, jpirko, jskrabal, kseifried, lwang, mjc, rwheeler, sprabhu, tao, vgoyal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-11-02 00:13:39 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: 493939, 493942, 494077, 494078    
Bug Blocks:    
Attachments:
Description Flags
Proposed patch.
none
Proposed Patch none

Description Eugene Teo (Security Response) 2009-04-04 01:13:20 UTC 
Description of problem:
The NFS file name limit is not being initialised correctly in the struct nfs_server. Make sure that we limit whatever is being set in nfs_probe_fsinfo() and nfs_init_server().

Also ensure that readdirplus and nfs4_path_walk respect our file name limits.

Upstream commit:
http://git.kernel.org/linus/54af3bb543c071769141387a42deaaab5074da55
Comment 4 Sachin Prabhu 2009-04-06 09:18:45 UTC 
Created attachment 338303 [details]
Proposed patch.

Patch back ported from upstream commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=54af3bb543c071769141387a42deaaab5074da55
Comment 6 Sachin Prabhu 2009-04-06 09:22:59 UTC 
Created attachment 338304 [details]
Proposed Patch

Proposed patch for RHEL 4.
Comment 10 errata-xmlrpc 2009-05-07 10:53:23 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:0473 https://rhn.redhat.com/errata/RHSA-2009-0473.html
Comment 11 errata-xmlrpc 2009-05-18 19:03:09 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:1024 https://rhn.redhat.com/errata/RHSA-2009-1024.html
Comment 12 errata-xmlrpc 2009-05-18 20:36:24 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:1024 https://rhn.redhat.com/errata/RHSA-2009-1024.html
Comment 13 errata-xmlrpc 2009-06-02 16:28:10 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4.7 Z Stream

Via RHSA-2009:1077 https://rhn.redhat.com/errata/RHSA-2009-1077.html
Comment 17 Kurt Seifried 2011-11-02 00:13:39 UTC 
All children bugs have been closed, parent is no longer needed.