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List Archive: gentoo-hardened
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Headers:
To: gentoo-hardened@g.o
From: magari <magari@...>
Subject: Re: paxctl and apache-2.2.6 strangeness
Date: Fri, 14 Sep 2007 15:20:53 -0600
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bump?

Guillaume Castagnino wrote:
> Hi,
> 
> Apache is really strange. Just upgraded to 2.2.6 (that works very well
> with last grsec/pax patch ;)).
> But I see a very strange thing :
> 
>> # paxctl -v /usr/sbin/apache2
>> PaX control v0.5
>> Copyright 2004,2005,2006,2007 PaX Team <pageexec@...>
>>
>> file /usr/sbin/apache2 is not a valid ELF executable (invalid PT_ entry:8)
> 
> Even with this "error", apache-2.2.6 works very well, but...
> what exactly does it means ? Really a problem with apache-2.2.6 ?
> or something that disturbs paxctl ?
> 
> chpax does not shows this error (but chpax is marked as obsolete...)
> and readelf or objdump does not reports any error :
>> # readelf -h /usr/sbin/apache2
>> ELF Header:
>>   Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
>>   Class:                             ELF32
>>   Data:                              2's complement, little endian
>>   Version:                           1 (current)
>>   OS/ABI:                            UNIX - System V
>>   ABI Version:                       0
>>   Type:                              DYN (Shared object file)
>>   Machine:                           Intel 80386
>>   Version:                           0x1
>>   Entry point address:               0x1cff0
>>   Start of program headers:          52 (bytes into file)
>>   Start of section headers:          394028 (bytes into file)
>>   Flags:                             0x0
>>   Size of this header:               52 (bytes)
>>   Size of program headers:           32 (bytes)
>>   Number of program headers:         10
>>   Size of section headers:           40 (bytes)
>>   Number of section headers:         27
>>   Section header string table index: 26
> 
> Any idea ?
> 
> Regards,
> Guillaume
> 
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-- 
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References:
paxctl and apache-2.2.6 strangeness
-- Guillaume Castagnino
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Updated Jun 17, 2009

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