Date: Thu, 28 Oct 2021 02:23:10 +0000 From: Roxana Bradescu <roxana.bradescu@...cle.com> To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com> CC: Lin Horse <kylin.formalin@...il.com> Subject: Re: CVE-2021-3760: Linux kernel: Use-After-Free vulnerability of ndev->rf_conn_info object > So I think that the distros tasked with reviewing initial notifications > should insist on the actual date/time being present in there, or add it > on their own in an immediate follow-up. Those distros currently are > Oracle and Wind River. I'd appreciate them confirming that they accept > this clarification. Acknowledged and agreed. --- Regards, Roxana > On Oct 26, 2021, at 4:59 AM, Solar Designer <solar@...nwall.com> wrote: > > On Tue, Oct 26, 2021 at 02:37:20PM +0800, Lin Horse wrote: >> 2021-09-01 Report to security and linux-distro >> 2021-09-01 CVE-2021-3760 assigned >> 2021-10-26 patch upstream >> >> Sorry for the delay of this report T.T > > Ouch. Let's use this opportunity to learn from the mishandling of this > issue and avoid that for other issues. Many things went wrong here: > > 1. The original notification by Lin to linux-distros did include "I'd > like to ask for 14 days of the embargo", which is OK'ish, but ideally > such messages should include the proposed public disclosure date/time - > and that's what the instructions ask for. When it's just "N days", I > guess people think "that's OK'ish" and move on. When it's a specific > date/time, it's easier for everyone to notice it approaching - not only > for people specifically tasked with that. That's just a psychological > detail that I guess nevertheless statistically affects the outcomes. > > So I think that the distros tasked with reviewing initial notifications > should insist on the actual date/time being present in there, or add it > on their own in an immediate follow-up. Those distros currently are > Oracle and Wind River. I'd appreciate them confirming that they accept > this clarification. > > "Promptly review new issue reports for meeting the list's requirements > and confirm receipt of the report and, when necessary, inform the > reporter of any issues with their report (e.g., obviously not actionable > by the distros) and request and/or propose any required yet missing > information (most notably, a tentative public disclosure date/time) - > primary: Oracle, backup: Wind River" > > 2. While Lin's original message to linux-distros included a "SUGGESTED > FIX" section (with a patch in it) and "I will do my best to work with > the developer on fixing this", no further messages on a fix were sent to > linux-distros. Lin, if you did in fact work with upstream on this, you > should have kept linux-distros aware of the progress, and especially of > the fix getting to public Linux kernel mailing lists or public commits, > as that ends the embargo. > > Further, distros failed to handle the corresponding "contributing back" > tasks. There was no activity by Gentoo lately at all, and while there > is recent helpful activity by Amazon, they didn't act this time. > > "Stay on top of issues to ensure progress is being made, remind others > when there's no apparent progress, as well as when the public disclosure > date for an issue is approaching and when it's finally reached (unless > the reporter beats you to it by making their mandatory posting to > oss-security first) - primary: Gentoo, backup: Amazon > > Monitor relevant public channels (mailing lists, code repositories, > etc.) and inform the reporter and the list in case an issue is made > public prematurely (that is, leaks or is independently rediscovered) - > primary: Amazon, backup: SUSE > > Make sure the mandatory oss-security posting is made promptly and is > sufficiently detailed, and remind the reporter if not - primary: Gentoo, > backup: Amazon" > > I'd like replies by Gentoo and Amazon on this, please. They should > either state that they'd be handling these tasks from this point on, or > we should reassign the tasks. > > Incidentally, I've already unassigned the statistics task from Gentoo > and Amazon a while ago, as that one was obviously not handled by them. > We still need another distro or two to volunteer for this one. As I had > mentioned, an important desirable side-effect of keeping the statistics > up-to-date is that this would catch issues that were not reported to > oss-security in time or at all. For example, if someone were updating > statistics for September on October 15 (by which point nothing from > September is supposed to still be embargoed), they'd catch this issue > 10 days earlier. > > 3. The only "contributing back" activity on this issue consisted of 3 > postings to linux-distros: prompt CVE ID assignment by Red Hat, a > reminder about 14 days having passed by SUSE on September 17 (that is, > already 3 days past the embargo period end), and another reminder by (a > different engineer from) SUSE on October 25 (this one worked). > > SUSE isn't formally tasked with this - Gentoo and Amazon are - but SUSE > happened to do it - thanks! SUSE is formally a backup for "Monitor > relevant public channels ...", which I guess could have worked as well, > but in this case the embargo period was already over by the time SUSE > first commented, so that aspect was irrelevant by then. > > 4. There's still no (reference to) fix for this issue on oss-security. > Lin, you write "2021-10-26 patch upstream" - can you please refer to the > actual upstream commit? Also, can you please let us all know when the > patch became public (possibly first on a public mailing list)? > > This issue itself is not that important, which is part of why it almost > slipped through the cracks, but it's our reminder and opportunity to fix > things before anything more important is mishandled. > > Alexander > > P.S. The Subject of this message as sent by Lin to oss-security > contained only the CVE ID and no description. I took the liberty to > edit it, adding the Subject string that was used on linux-distros, > before approving the message as list moderator. Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)
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