oss-sec mailing list archives

Re: Cve issue discussion


From: Jesse Hertz <jesse_hertz () apple com>
Date: Mon, 07 Aug 2017 13:22:46 -0400

fwiw, double check and make sure the issue occurs in libpng without ASAN. Sometimes ASAN can cause "heisenbugs" which 
only happen if ASAN is used.

On Aug 7, 2017, at 9:57 AM, Glenn Randers-Pehrson <glennrp () gmail com> wrote:

OK I'll request a CVE for this libpng issue.

Glenn

On Mon, Aug 7, 2017 at 9:05 AM, John Haxby <john.haxby () oracle com> wrote:
On 07/08/17 13:47, Glenn Randers-Pehrson wrote:
It's not causing a crash, just a delay.  You'll safely get either an OOM
message or an EOF message.and no memory leak.


That's scant comfort when your browser is the one hit by the OOM killer
and then again when you restart it.  And also while you're wondering
what's going on because your laptop is basically completely
non-responsive ...

So yes, it's a remote DoS and definitely worth a CVE.  We have had other
similar CVEs in the past with image handling libraries not being
sufficiently paranoid.

jch

Glenn

On Mon, Aug 7, 2017 at 8:37 AM, Marcus Meissner <meissner () suse de> wrote:
Hi,

if it could crash the image reader I would consider it "remote denial of service"
classed and CVE worthy.


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