From: pageexec@freemail.hu
To: gentoo-hardened@lists.gentoo.org
Subject: Re: [gentoo-hardened] 2.6.27-hardened-r8: assassination
Date: Fri, 06 Mar 2009 23:12:59 +0200 [thread overview]
Message-ID: <49B19FEB.13855.19525701@pageexec.freemail.hu> (raw)
In-Reply-To: <20090306215141.GA3005@home.power>
On 6 Mar 2009 at 23:51, Alex Efros wrote:
> When I run apache for the first time after reboot - without strace/core,
> just to see is it crash - I got this in kernel log:
>
> 2009-03-06_20:48:56.60108 kern.info: apache2[4621]: segfault at
> 4d554ed0 ip 4d541399 sp 594130d0 error 7 in ld-2.6.1.so[4d53a000+1a000]
ah crap, i know what it is. it's a several years old glibc bug where someone
put a certain variable into the RELRO segment but forgot that it'll be written
to later when a library with RWE GNU_STACK is loaded. the workaround is to find
that library (just extract them from strace, probably it'll be pari's library)
and run execstack -c on it.
next prev parent reply other threads:[~2009-03-06 22:13 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-06 3:57 [gentoo-hardened] 2.6.27-hardened-r8: assassination Alex Efros
2009-03-06 7:11 ` Alex Efros
2009-03-06 7:15 ` pageexec
2009-03-06 15:13 ` Alex Efros
2009-03-06 17:28 ` pageexec
2009-03-06 21:51 ` Alex Efros
2009-03-06 21:12 ` pageexec [this message]
2009-03-06 22:57 ` Alex Efros
2009-03-06 23:25 ` Ned Ludd
2009-03-06 23:46 ` Alex Efros
2009-03-19 14:50 ` pageexec
2009-03-19 16:46 ` John Eckhart
2009-03-20 22:31 ` pageexec
2009-03-21 15:12 ` atoth
2011-03-08 18:40 ` Alex Efros
2011-03-08 19:05 ` Mike Frysinger
2011-03-08 19:52 ` Alex Efros
2011-03-08 20:01 ` Mike Frysinger
2011-03-08 20:48 ` klondike
2011-03-08 20:49 ` Anthony G. Basile
2011-03-08 20:55 ` Mike Frysinger
2011-03-09 9:03 ` pageexec
2011-03-10 20:30 ` Anthony G. Basile
2011-03-10 20:39 ` Anthony G. Basile
2011-03-08 21:07 ` Alex Efros
2011-03-09 13:07 ` med
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