Le vendredi 14 septembre 2007, [EMAIL PROTECTED] a écrit :
> On 9 Sep 2007 at 18:12, Guillaume Castagnino wrote:
> > > # paxctl -v /usr/sbin/apache2
> > > PaX control v0.5
> > > Copyright 2004,2005,2006,2007 PaX Team <[EMAIL PROTECTED]>
> > >
> > > 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 ?
>
> that's interesting. paxctl has tons of sanity checks for various
> ELF fields, apparently something isn't right in a certain program
> header entry. can you post readelf -l /usr/sbin/apache2 ?
Here it is :
# readelf -l /usr/sbin/apache2
Elf file type is DYN (Shared object file)
Entry point 0x1cff0
There are 10 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg
Align
PHDR 0x000034 0x00000034 0x00000034 0x00140 0x00140 R E 0x4
INTERP 0x000174 0x00000174 0x00000174 0x00013 0x00013 R 0x1
[Requesting program interpreter: /lib/ld-linux.so.2]
LOAD 0x000000 0x00000000 0x00000000 0x5dbd4 0x5dbd4 R E
0x1000
LOAD 0x05dd14 0x0005ed14 0x0005ed14 0x02544 0x05380 RW
0x1000
DYNAMIC 0x05e888 0x0005f888 0x0005f888 0x00178 0x00178 RW 0x4
NOTE 0x000188 0x00000188 0x00000188 0x00020 0x00020 R 0x4
GNU_EH_FRAME 0x05db5c 0x0005db5c 0x0005db5c 0x0001c 0x0001c R 0x4
GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0x4
GNU_RELRO 0x05dd14 0x0005ed14 0x0005ed14 0x012ec 0x012d4 R 0x1
PAX_FLAGS 0x000000 0x00000000 0x00000000 0x00000 0x00000 0x4
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .interp .note.ABI-tag .hash .gnu.hash .dynsym .dynstr .gnu.version
.gnu.version_r .rel.dyn .rel.plt .init .plt .text .fini .rodata .eh_frame_hdr
.eh_frame
03 .ctors .dtors .jcr .data.rel.ro .dynamic .got .data .bss
04 .dynamic
05 .note.ABI-tag
06 .eh_frame_hdr
07
08 .ctors .dtors .jcr .data.rel.ro .dynamic
09
Regards,
Guillaume
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Guillaume Castagnino
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