I have filed https://bugzilla.mozilla.org/show_bug.cgi?id=1435770
requesting an incident report from Certum.

On Mon, Feb 5, 2018 at 10:07 AM, Eric Mill via dev-security-policy <
dev-security-policy@lists.mozilla.org> wrote:

> WoSign and StartCom are untrusted, but Certum is still trusted, right?
>
> Yes, the two certificates issued by Certum are trusted by Mozilla.

On Mon, Feb 5, 2018 at 11:08 AM, Hanno Böck via dev-security-policy <
> dev-security-policy@lists.mozilla.org> wrote:
>
> > Hi,
> >
> > I searched crt.sh for valid certificates vulnerable to the 2008 Debian
> > weak key bug. (Only 2048 bit.)
> >
> > Overall I found 5 unexpired certificates.
> >
> > Two certificates by Certum (reported on Saturday, Certum told me "We
> > have taken necessary steps to clarify this situation as soon as
> > possible", they're not revoked yet):
> > https://crt.sh/?id=308392091&opt=ocsp
> > https://crt.sh/?id=6888863&opt=ocsp
> >
> > Wosign:
> > https://crt.sh/?id=30347743
> > StartCom:
> > https://crt.sh/?id=54187884
> > https://crt.sh/?id=307753186
> >
> > As we all know these are no longer trusted by Mozilla, I reported them
> > nevertheless. No reply yet.
> >
> > Old bugs never die, I recommend every CA adds a check for the Debian
> > bug to their certificate issuance process.
>
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