apache 1.3 crashes

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apache 1.3 crashes

Postby polarfox » Tue Aug 10, 2004 3:53 am

Hi,

I founded my apache crashes sometimes. Logs show this:

Code: Select all
Aug 10 06:26:16 alus kernel: PAX: bytes at PC: <invalid address>.
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: execution attempt in: <NULL>, 00000000-00000000 00000000
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: terminating task: /usr/sbin/apache(apache):22573, uid/euid: 33/33, PC: 00000001, SP: 5cfff600
Aug 10 06:26:16 alus kernel: PAX: bytes at PC: <invalid address>.
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: execution attempt in: <NULL>, 00000000-00000000 00000000
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: terminating task: /usr/sbin/apache(apache):22556, uid/euid: 33/33, PC: 00000001, SP: 5cfff600


How to solve this problem?

Thanks
polarfox
 
Posts: 6
Joined: Sat Feb 07, 2004 10:31 am

Re: apache 1.3 crashes

Postby PaX Team » Tue Aug 10, 2004 4:29 am

polarfox wrote:
Code: Select all
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: execution attempt in: <NULL>, 00000000-00000000 00000000
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: terminating task: /usr/sbin/apache(apache):22573, uid/euid: 33/33, PC: 00000001, SP: 5cfff600


How to solve this problem?
apache is dereferencing a NULL function pointer. you could enable coredumping and analyze the coredump then we can tell more, otherwise it's hard to fix properly.
PaX Team
 
Posts: 2310
Joined: Mon Mar 18, 2002 4:35 pm

Re: apache 1.3 crashes

Postby Oscon » Tue Aug 10, 2004 12:27 pm

polarfox wrote:Hi,

I founded my apache crashes sometimes. Logs show this:

Code: Select all
Aug 10 06:26:16 alus kernel: PAX: bytes at PC: <invalid address>.
Aug 10 06:26:16 alus kernel: PAX: From x.x.x.x: execution attempt in: <NULL>, 00000000-00000000 00000000




It seems...I think so, the PaX protect your linux system from this problem ?

The fixed libpng is available in linux distributions.
Oscon
 
Posts: 44
Joined: Fri Jun 11, 2004 6:32 pm


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