RE: Cve issue discussion

[ne xo <nexo123 () outlook kr>]

Most bugs in ASan do not cause crash in non-ASan environments.

You should check with the valgrind tool.
________________________________
보낸 사람: Glenn Randers-Pehrson <glennrp () gmail com>
보낸 날짜: 2017년 8월 8일 화요일 오전 4:32:13
받는 사람: oss-security () lists openwall com
제목: Re: [oss-security] Cve issue discussion

It doesn't occur on my own Ubuntu platform without ASAN.  But anyone
running with
a malloc that initializes the memory (trusted systems, etc) would be affected

On Mon, Aug 7, 2017 at 1:22 PM, Jesse Hertz <jesse_hertz () apple com> wrote:
> 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.