Pardus alert 2010-94 (kernel kernel-pae)

From:
    	     
 
Eren Turkay <eren@pardus.org.tr> 
To:
    	     
 
pardus-security@pardus.org.tr 
Subject:
    	     
 
[Pardus-security] [PLSA 2010-94] Kernel: Multiple Vulnerabilities 
Date:
    	     
 
Thu,  8 Jul 2010 13:54:21 +0300 (EEST)
Message-ID:
    	     
 
<20100708105421.79F03A7AB50@lider.pardus.org.tr>

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Pardus Linux Security Advisory 2010-94            security@pardus.org.tr
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      Date: 2010-07-08
  Severity: 4
      Type: Remote
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Summary
=======

Multiple vulnerabilities have been fixed in kernel. 


Description
===========

CVE-2010-1641: 

The do_gfs2_set_flags function in fs/gfs2/file.c in  the  Linux  kernel 
before 2.6.34-git10 does not verify the  ownership  of  a  file,  which 
allows local users to bypass intended access restrictions via a SETFLAGS
ioctl request. 



CVE-2010-1636: 

The  btrfs_ioctl_clone function  in  fs/btrfs/ioctl.c  in  the   btrfs  
functionality in the Linux kernel 2.6.29 through 2.6.32,  and  possibly 
other versions, does not ensure that a cloned file descriptor has  been 
opened  for reading,  which  allows  local  users  to  read  sensitive  
information from a write-only file descriptor. 



CVE-2010-2071: 

The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux
kernel 2.6.34 and earlier does not check file ownership before  setting 
an ACL, which allows local users to bypass file permissions by  setting 
arbitrary ACLs, as demonstrated using setfacl. 



CVE-2010-2066: 

If the donor file is an append-only  file,  we  should  not  allow  the 
operation to proceed, lest we end up overwriting  the  contents  of  an 
append-only file. 


Affected packages:

  Pardus 2009:
    kernel, all before 2.6.31.13-131-46
    kernel-pae, all before 2.6.31.13-131-27



Resolution
==========

There are update(s) for kernel, kernel-pae. You  can  update  them  via 
Package Manager or with a single command from console: 

    pisi up kernel kernel-pae

References
==========

  * http://bugs.pardus.org.tr/show_bug.cgi?id=13450
  * http://bugs.pardus.org.tr/show_bug.cgi?id=13292
  * http://bugs.pardus.org.tr/show_bug.cgi?id=13490
  * http://bugs.pardus.org.tr/show_bug.cgi?id=13289

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