Date: Sat, 23 Sep 2017 13:44:18 +0200 From: Hanno Böck <hanno@...eck.de> To: oss-security@...ts.openwall.com Subject: Why send bugs embargoed to distros? Hi, A few days have passed since the optionsbleed disclosure. Some interesting things have surfaced, e.g. the fact that it was apparently discovered already in 2014, but nobody noticed it was a security bug. But I'd like to discuss something else: I had informed the distros mailing list one week earlier about the upcoming disclosure with a bug description and links to the already available patch. My understanding is that the purpose of the distros list is that updates can be prepared so after a disclosure the time between "vuln is known" and "patch is available" is short. However from all I can see this largely didn't happen. Debian+Ubuntu took more than a day after disclosure to fix. According to the Debian bug tracker the bug got only opened after the public disclosure. I see no sign that any work on a fix began before the disclosure. If I can trust Red Hat's CVE tracker  there still are no fixed packages available. Also I haven't found any info about updated opensuse packages. The only distro I'm aware of that prepared packages and pushed them right after disclosure is Gentoo. All of this makes me wonder if the distros list serves its purpose. I'd be curious to hear: a) if any people felt that pre-disclosure of optionsbleed was helpful to them and in which way (after all - even if it only helps minor distros and major distros ignore it it may still be a good thing). b) if people think that they'd usually prepare a fixed package, however they didn't consider optionsbleed important enough. (Naturally I probably have a bias seeing my findings as more important as other people, but I could live with that.) c) other things?  https://arxiv.org/pdf/1405.2330.pdf https://blog.fuzzing-project.org/61-How-Optionsbleed-wasnt-found-in-2014.html  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=876109  https://access.redhat.com/security/cve/cve-2017-9798 -- Hanno Böck https://hboeck.de/ mail/jabber: hanno@...eck.de GPG: FE73757FA60E4E21B937579FA5880072BBB51E42
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