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Bug 303767 (CVE-2010-0926)

Summary: net-fs/samba-server: symlink-traversal (CVE-2010-0926)
Product: Gentoo Security Reporter: Stefan Behte (RETIRED) <craig>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: RESOLVED FIXED    
Severity: major CC: ole+gentoo, samba
Priority: High    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: http://marc.info/?l=samba-technical&m=126539387432412&w=2
Whiteboard: C3 [noglsa]
Package list:
Runtime testing required: ---

Description Stefan Behte (RETIRED) gentoo-dev Security 2010-02-06 16:10:03 UTC
See $URL.

Guess this deserves some attention, but writeable shares are needed:
http://blog.metasploit.com/2010/02/exploiting-samba-symlink-traversal.html
Comment 1 Stefan Behte (RETIRED) gentoo-dev Security 2010-04-11 14:01:44 UTC
CVE-2010-0926 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0926):
  The default configuration of smbd in Samba before 3.3.11, 3.4.x
  before 3.4.6, and 3.5.x before 3.5.0rc3, when a writable share
  exists, allows remote authenticated users to leverage a directory
  traversal vulnerability, and access arbitrary files, by using the
  symlink command in smbclient to create a symlink containing .. (dot
  dot) sequences, related to the combination of the unix extensions and
  wide links options.

Comment 2 Tim Sammut (RETIRED) gentoo-dev 2010-11-26 23:05:45 UTC
Vulnerable versions are no longer in the tree.

GLSA Vote: no.
Comment 3 Krzysztof Olędzki 2010-11-27 00:15:38 UTC
(In reply to comment #2)
> Vulnerable versions are no longer in the tree.

But may still exist installed on many systems.
Comment 4 Tim Sammut (RETIRED) gentoo-dev 2010-11-27 00:21:09 UTC
(In reply to comment #3)
> (In reply to comment #2)
> > Vulnerable versions are no longer in the tree.
> 
> But may still exist installed on many systems.
> 

Hi, Krzysztof.

Good point, and that is something to be considered when the team decides whether or not to publish a GLSA. At the same time, having fixed versions in the tree and stable allows us to jump ahead in the security process.
Comment 5 Stefan Behte (RETIRED) gentoo-dev Security 2010-11-27 11:14:19 UTC
Vote: YES.
Comment 6 Sune Kloppenborg Jeppesen (RETIRED) gentoo-dev 2011-01-03 20:22:46 UTC
It's old so GLSA Vote: no -> Closing. Feel free to reopen if you disagree.