Re: VUDDY: unpatched CVEs in apache httpd

[Eric Covener]

On Wed, May 24, 2017 at 1:16 PM, Reindl Harald  wrote:
> for user/admin/vendor it's nothing different than any of the other undrets
> to thousands of packages on their system "yum/dnf upgrade, apt-get
> upgrade.." and now they *really* are up-to-date

That's already how it works for a vendor-packaged httpd too.

Re: VUDDY: unpatched CVEs in apache httpd

[Reindl Harald]

Am 24.05.2017 um 19:12 schrieb Eric Covener:

On Wed, May 24, 2017 at 1:05 PM, Reindl Harald  wrote:

than also the source should not be bundeled and instead a requirement to
have it installed for build


Already covered ITT: "apr-util 1.6.0 will ship without an embedded
copy of the expat software."


sorry, i missed the "without" and "Obtaining expat and keeping it 
refreshed and up to date with respect to security patches will become an 
exercise for the user/admin/vendor" sound typically more like the usual 
problem of httpd, php and others having burried a random version inside 
the soorce tarball


for user/admin/vendor it's nothing different than any of the other 
undrets to thousands of packages on their system "yum/dnf upgrade, 
apt-get upgrade.." and now they *really* are up-to-date

Re: VUDDY: unpatched CVEs in apache httpd

[Eric Covener]

On Wed, May 24, 2017 at 1:05 PM, Reindl Harald  wrote:
> than also the source should not be bundeled and instead a requirement to
> have it installed for build

Already covered ITT: "apr-util 1.6.0 will ship without an embedded
copy of the expat software."

-- 
Eric Covener
cove...@gmail.com

Re: VUDDY: unpatched CVEs in apache httpd

[Reindl Harald]

Am 24.05.2017 um 17:46 schrieb Eric Covener:

On Wed, May 24, 2017 at 11:44 AM, Reindl Harald  wrote:

and why does it need to be an embedded copy?


It's not required to be embedded


than also the source should not be bundeled and instead a requirement to 
have it installed for build - problem is with the bundeling many people 
don't realize that their system updates for libraries don't cover the 
default build of random software - httpd/apr is just one of them

Re: VUDDY: unpatched CVEs in apache httpd

[Eric Covener]

On Wed, May 24, 2017 at 11:44 AM, Reindl Harald  wrote:
> and why does it need to be an embedded copy?

It's not required to be embedded

Re: VUDDY: unpatched CVEs in apache httpd

[Reindl Harald]

Am 24.05.2017 um 17:02 schrieb William A Rowe Jr:

apr-util 1.6.0 will ship without an embedded copy of the expat software.

Obtaining expat and keeping it refreshed and up to date with respect
to security patches will become an exercise for the user/admin/vendor.

This is scheduled for "RSN" - real soon now


and why does it need to be an embedded copy?
bundle libraries is the start of all evil

[root@buildserver:~]$ rpm -qa |grep expat
expat-2.1.1-2.fc24.x86_64
expat-devel-2.1.1-2.fc24.x86_64

Re: VUDDY: unpatched CVEs in apache httpd

[William A Rowe Jr]

apr-util 1.6.0 will ship without an embedded copy of the expat software.

Obtaining expat and keeping it refreshed and up to date with respect
to security patches will become an exercise for the user/admin/vendor.

This is scheduled for "RSN" - real soon now.

Bill


On Wed, May 24, 2017 at 1:43 AM, Stefan Priebe - Profihost AG
 wrote:
> Hello list,
>
> while reading "http://www.ieee-security.org/TC/SP2017/papers/71.pdf;
> they claim to have found unpatched security holes in apache httpd. While
> reading further it seems that the only missing peace is the unpatched
> xmlparse from expat.
>
> While searching on our build server it turns out to me that the bug is
> not in apache httpd but in aprutil:
>
> # grep -nHr 'newHash = hash' apr-util-1.5.4
>
> apr-util-1.5.4/xml/expat/lib/xmlparse.c:5431:  unsigned long
> newHash = hash(table->v[i]->name);
>
> Did i miss anything from the paper? Is a new apr-util version planned
> which fixes the problem? Are there any special build options or modules
> needed?
>
> Greets,
> Stefan

VUDDY: unpatched CVEs in apache httpd

[Stefan Priebe - Profihost AG]

Hello list,

while reading "http://www.ieee-security.org/TC/SP2017/papers/71.pdf;
they claim to have found unpatched security holes in apache httpd. While
reading further it seems that the only missing peace is the unpatched
xmlparse from expat.

While searching on our build server it turns out to me that the bug is
not in apache httpd but in aprutil:

# grep -nHr 'newHash = hash' apr-util-1.5.4

apr-util-1.5.4/xml/expat/lib/xmlparse.c:5431:  unsigned long
newHash = hash(table->v[i]->name);

Did i miss anything from the paper? Is a new apr-util version planned
which fixes the problem? Are there any special build options or modules
needed?

Greets,
Stefan