OpenSSH 10.6

I found a small bug in QoS handling in the OpenSSH client under specific conditions. It had a big impact on my workflow but wasn’t a complete showstopper and might not have had an obvious impact on the broader user base. I raised an issue on the tracker and within a day I had a test build, a confirmed fix and a note of which release would carry the fix. It was one of the most positive experiences I’ve had reporting a bug, especially for a non-security issue.

I know this comment doesn’t add much to the conversation about this release, but I’m very grateful to Damien (who handled the issue) and the team for the wonderful job they’re doing on such a core piece of software.

▲

kuekacang 4 hours ago | parent | next [-]

Link or didn't hapen /s

But seriously if feasible, share the issue link. Especially when there's conversation involved, it's different kind of nice (and learning opportunity) reading such thread

▲

tiffanyh 3 hours ago | parent | prev [-]

> I raised an issue on the tracker

I thought OpenBSD / OpenSSH operate without a tracker and it’s all email distro based.

	▲	throw0101a 3 hours ago \| parent [-]
		OpenSSH uses Bugzilla: * https://www.openssh.org/report.html

▲

brynet 5 hours ago | parent | prev | next [-]

> sshd(8): On OS X SDK >= 27, sandboxing is no longer supported as the API we depended upon has been removed and no obvious alternative provided.

https://github.com/openssh/openssh-portable/commit/d4b4c304a...

▲

kccqzy 4 hours ago | parent | next [-]

Deprecated since Mountain Lion. https://issuetracker.google.com/40474030

It’s what Apple experimented with before they came up with the current entitlements system.

▲

djmdjm 2 hours ago | parent | next [-]

Entitlements are a great system for user applications, but pretty much unusable for OSS system applications as AIUI they need codesigned binaries

	▲	kccqzy 24 minutes ago \| parent [-]
		They could have designed a system to put the code signature inside Mach-O but they chose not to.

▲

saagarjha 2 hours ago | parent | prev [-]

I wouldn’t really say it compares to entitlements

▲

mrpippy 4 hours ago | parent | prev | next [-]

I look forward to seeing if Apple makes any changes in the fork they ship with the OS: https://github.com/apple-oss-distributions/OpenSSH.

"Updated sandbox for privilege-separated pre-authorization sshd process" is listed as a modification to the open-source project, but I suspect this is out-of-date.

▲

saagarjha 2 hours ago | parent | prev [-]

I’m confused why they can’t just write a sandbox profile that does the equivalent

▲

jmclnx an hour ago | parent [-]

Who is "they" ? AFAIK the OpenSSH team focuses on the OpenBSD version and others people/teams use the new releases to create/update a portable version.

So I think it would be up to the team that ports it to Apple, so I think the "Apple Team" is the ones who would worry about sandboxing.

	▲	brynet 33 minutes ago \| parent [-]
		OpenSSH -portable is maintained by the OpenSSH developers, who are also OpenBSD developers.

▲

tptacek 4 hours ago | parent | prev | next [-]

The big ticket thing here seems to be mitigation of "Crossing The Streams", a CRIME-style compression side channel that relies on the fact that different sessions share LZ77 state:

https://arxiv.org/pdf/2609.07709

▲

FloatArtifact 6 hours ago | parent | prev | next [-]

" * We have seen a number of cases where a security bug identified * by AI tools is subsequently independently discovered by a * different researcher. This suggests that adversaries who do not * report bugs to OSS projects are likely to be able to discover * these bugs too. Given this, the OpenSSH team will, for now, be * making more frequent releases to get bugfixes into users' hands * more quickly rather than batching them until the next planned * release."

▲

ilaksh 4 hours ago | parent | prev | next [-]

They mention a donation link: https://www.openbsd.org/donations.html

I wonder what their funding is like.

	▲	jmclnx an hour ago \| parent [-]
		It is based upon what the OpenBSD Foundation gets. Last year: https://www.openbsdfoundation.org/campaign2025.html Now I am going to call out IBM. Last I checked, IBM uses OpenSSH on AIX, but gives a big fat 0. Microsoft has been consistent in donating a decent amount. And a surprise to me, Meta showed up donating last year, nice. I wish IBM would join the list too. Based upon: https://www.openbsdfoundation.org/contributors.html

▲

po1nt 5 hours ago | parent | prev | next [-]

I think this is much healthier approach to AI reports than curl has. But I understand both sides.

▲

this_user 3 hours ago | parent [-]

OpenSSH don't have the same luxury of being able to ignore potential vulnerabilities.

	▲	mitxela 3 hours ago \| parent [-]
		Curl doesn't ignore vulnerabilities

▲

robinpie 4 hours ago | parent | prev [-]

Really glad to see the rate of security fixes speeding up.