Date: Tue, 01 Nov 2022 21:52:59 +0100 From: "Erin Shepherd" <erin.shepherd@....eu> To: oss-security@...ts.openwall.com Subject: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) LibreTLS does not track the OpenSSL API, so increasingly software does not build with it (it's not possible to support both LibreSSL and a supported version of OpenSSL without #ifdef hell) Additionally, there have been breakages to LibreSSL's compatibility with OpenSSL 1.0. As a general rule, distros don't want to package multiple OpenSSL forks because it just heavily multiplies the amount of security work necessary. On Tue, 1 Nov 2022, at 20:56, Demi Marie Obenour wrote: > On Wed, Nov 02, 2022 at 06:35:42AM +1100, Dave Horsfall wrote: > > On Tue, 1 Nov 2022, Demi Marie Obenour wrote: > > > > [ Massive trim ] > > > > > 3. When will OpenSSL be replaced by something written in a safe > > > language, or at least with a better-maintained fork? I know that > > > distributions often cannot use LibreSSL (because FIPS, ugh) or > > > BoringSSL (because of no stable API or ABI), but I wonder if e.g. > > > libcurl should be linked to BoringSSL instead. > > > > We see this over at https://boringssl.googlesource.com/boringssl/ : > > > > ``Although BoringSSL is an open source project, it is not intended > > for general use, as OpenSSL is. We don't recommend that third parties > > depend upon it. Doing so is likely to be frustrating because there > > are no guarantees of API or ABI stability.'' > > > > If even the manufacturer says that you shouldn't use it... > > My understanding was that libcurl gets updated whenever BoringSSL needs > a change, and that libcurl’s API does not depend on what TLS backend it > uses. Applications would not be impacted, since they would only use the > libcurl API and ABI. > > That said, this would require constantly updating to new versions of > libcurl + BoringSSL, so it might not make sense in general. LibreSSL or > rustls could well be a better choice. > -- > Sincerely, > Demi Marie Obenour (she/her/hers) > Invisible Things Lab > > > *Attachments:* > * signature.asc
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