[PATCH] CVE-2014-8121: Fix nss_files file management [BZ#18007]

Florian Weimer fweimer@redhat.com
Wed Apr 1 17:54:00 GMT 2015


On 03/25/2015 06:47 AM, Siddhesh Poyarekar wrote:
> On Mon, Mar 16, 2015 at 04:00:32PM +0100, Florian Weimer wrote:
>> On 02/23/2015 12:42 PM, Florian Weimer wrote:
>>> Robin Hack discovered that Samba would enter an infinite loop
>>> when processing quota-related requests.  It turns out this is a
>>> bug in the nss_files database.  Performing a lookup in the
>>> middle of an iteration (say, getwuid between getpwent)
>>> effectively resets the file pointer, so that the iteration
>>> starts again from the beginning.
>>> 
>>> Tested on x86_64-redhat-linux-gnu.  Okay to commit?
>> 
>> Ping?
>> 
>> Can we at least fix the most common instance of this bug?
> 
> I agree.  Patch looks good to me.

Should I commit this in the interim, until we can get Andreas' more
comprehensive patch reviewed?

-- 
Florian Weimer / Red Hat Product Security



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