Re: Telnetd Vulnerability Report
Ron Ben Yizhak <[email protected]> Wed, 18 Feb 2026 15:41:00 +0200
| Newsgroups | gmane.comp.gnu.inetutils.bugs |
|---|---|
| Message-ID | <CAB1hGqTHdp238pQK8khVrMSsYuJRmWkXEBsqm9XXwHgpqSq1jQ@mail.gmail.com> |
--00000000000056af5b064b1957e2 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi, That is perfect. Thank you! On Wed, Feb 18, 2026 at 3:21=E2=80=AFPM Erik Auerswald <[email protected]= i-kl.de> wrote: > Hi, > > I think it would be fine to adjust the attribution, would something like > the following be OK? > > ----------------8<---------------- > diff --git a/NEWS.md b/NEWS.md > index f5172a71..2d575efa 100644 > --- a/NEWS.md > +++ b/NEWS.md > @@ -8,7 +8,7 @@ improvements and security advisory by Simon Josefsson. > > ** Prevent privilege escalation via telnetd abusing systemd service > credentials support added to the login(1) implementation of util-linux > -in release 2.40. Reported by Ron Ben Yizhak in > +in release 2.40. Reported by Ron Ben Yizhak@SafeBreach in > <https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00000.html>= . > > ** telnet: Drop everything related to TN3270. > diff --git a/THANKS b/THANKS > index ef5f6063..f6e725f1 100644 > --- a/THANKS > +++ b/THANKS > @@ -10,7 +10,7 @@ In particular: > Nathan Neulinger (tftpd) > Thomas Bushnell (sockaddr sin_len field) > Kyu Neushwaistein (reported remote root exploit in telnetd) > - Ron Ben Yizhak (reported privilege escalation via telnetd) > + Ron Ben Yizhak@SafeBreach (reported privilege escalation via telnetd) > > Please see version control logs and ChangeLog.? for full credits. > > ---------------->8---------------- > > Any objections? > > Cheers, > Erik > > > On Mon, Feb 16, 2026 at 02:03:01PM +0200, Ron Ben Yizhak wrote: > > Hi, > > > > Thank you for handling my report and fixing the vulnerability. As this > > finding was done as part of my job at SafeBreach, it is very important > for > > us that SafeBreach will be mentioned in the patch. > > Could you please change the THANKS and NEWS.md file to say Ron Ben > > Yizhak@SafeBreach instead of Ron Ben Yizhak? > > > > Also, when will a CVE be assigned for this vulnerability? > > Thank you, > > Ron Ben Yizhak > > > > On Sun, Feb 15, 2026 at 7:21=E2=80=AFPM Erik Auerswald < > [email protected]> > > wrote: > > > > > Hi Simon, > > > > > > On Sun, Feb 15, 2026 at 04:36:56PM +0100, Simon Josefsson wrote: > > > > Erik Auerswald <[email protected]> writes: > > > > > > > > > I plan to commit and push the attached patch in a few days to > address > > > > > this vulnerability, unless there are reasonable objections. > > > > > > > > Thanks -- I wish we could implement the --accept-env approach and > make > > > > the default not set any environment variables at all, but I don't > have > > > > cycles to work on that. Anyone else? > > > > > > Me neither. > > > > > > > Your patch seems to close this vulnerability report in a most minim= al > > > > way, so IMHO we should apply it. > > > > > > I have just applied it. > > > > > > Cheers, > > > Erik > --00000000000056af5b064b1957e2 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">Hi,<div><br></div><div>That is perfect. Thank you!</div></= div><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" c= lass=3D"gmail_attr">On Wed, Feb 18, 2026 at 3:21=E2=80=AFPM Erik Auerswald = <<a href=3D"mailto:[email protected]">[email protected]= e</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin= :0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"= >Hi,<br> <br> I think it would be fine to adjust the attribution, would something like<br= > the following be OK?<br> <br> ----------------8<----------------<br> diff --git a/NEWS.md b/NEWS.md<br> index f5172a71..2d575efa 100644<br> --- a/NEWS.md<br> +++ b/NEWS.md<br> @@ -8,7 +8,7 @@ improvements and security advisory by Simon Josefsson.<br> <br> =C2=A0** Prevent privilege escalation via telnetd abusing systemd service<b= r> =C2=A0credentials support added to the login(1) implementation of util-linu= x<br> -in release 2.40.=C2=A0 Reported by Ron Ben Yizhak in<br> +in release 2.40.=C2=A0 Reported by Ron Ben Yizhak@SafeBreach in<br> =C2=A0<<a href=3D"https://lists.gnu.org/archive/html/bug-inetutils/2026-= 02/msg00000.html" rel=3D"noreferrer" target=3D"_blank">https://lists.gnu.or= g/archive/html/bug-inetutils/2026-02/msg00000.html</a>>.<br> <br> =C2=A0** telnet: Drop everything related to TN3270.<br> diff --git a/THANKS b/THANKS<br> index ef5f6063..f6e725f1 100644<br> --- a/THANKS<br> +++ b/THANKS<br> @@ -10,7 +10,7 @@ In particular:<br> =C2=A0 =C2=A0Nathan Neulinger=C2=A0 =C2=A0 =C2=A0 =C2=A0(tftpd)<br> =C2=A0 =C2=A0Thomas Bushnell=C2=A0 =C2=A0 =C2=A0 =C2=A0 (sockaddr sin_len f= ield)<br> =C2=A0 =C2=A0Kyu Neushwaistein=C2=A0 =C2=A0 =C2=A0 (reported remote root ex= ploit in telnetd)<br> -=C2=A0 Ron Ben Yizhak=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(reported privilege= escalation via telnetd)<br> +=C2=A0 Ron Ben Yizhak@SafeBreach (reported privilege escalation via telnet= d)<br> <br> =C2=A0Please see version control logs and ChangeLog.? for full credits.<br> <br> ---------------->8----------------<br> <br> Any objections?<br> <br> Cheers,<br> Erik<br> <br> <br> On Mon, Feb 16, 2026 at 02:03:01PM +0200, Ron Ben Yizhak wrote:<br> > Hi,<br> > <br> > Thank you for handling my report and fixing the vulnerability. As this= <br> > finding was done as part of my job at SafeBreach, it is very important= for<br> > us that SafeBreach will be mentioned in the patch.<br> > Could you please change the THANKS and NEWS.md file to say Ron Ben<br> > Yizhak@SafeBreach instead of Ron Ben Yizhak?<br> > <br> > Also, when will a CVE be assigned for this vulnerability?<br> > Thank you,<br> > Ron Ben Yizhak<br> > <br> > On Sun, Feb 15, 2026 at 7:21=E2=80=AFPM Erik Auerswald <<a href=3D"= mailto:[email protected]" target=3D"_blank">[email protected]= l.de</a>><br> > wrote:<br> > <br> > > Hi Simon,<br> > ><br> > > On Sun, Feb 15, 2026 at 04:36:56PM +0100, Simon Josefsson wrote:<= br> > > > Erik Auerswald <<a href=3D"mailto:[email protected]= .de" target=3D"_blank">[email protected]</a>> writes:<br> > > ><br> > > > > I plan to commit and push the attached patch in a few d= ays to address<br> > > > > this vulnerability, unless there are reasonable objecti= ons.<br> > > ><br> > > > Thanks -- I wish we could implement the --accept-env approac= h and make<br> > > > the default not set any environment variables at all, but I = don't have<br> > > > cycles to work on that.=C2=A0 Anyone else?<br> > ><br> > > Me neither.<br> > ><br> > > > Your patch seems to close this vulnerability report in a mos= t minimal<br> > > > way, so IMHO we should apply it.<br> > ><br> > > I have just applied it.<br> > ><br> > > Cheers,<br> > > Erik<br> </blockquote></div> --00000000000056af5b064b1957e2--