YHK - yet another hacker news clone

Ubuntu still has not released patch for Linux 0day RCE in almost 3 weeks

141 points majorchord 3 hours ago 22 comments

majorchord 3 hours ago | parent

They also don't provide any mitigation possibilities or instructions... RHEL has one method here: https://access.redhat.com/security/vulnerabilities/RHSB-2026...

However they also claim the mitigation "reduces exposure to this vulnerability but cannot fully prevent it", without elaborating on what that means or how it would be possible... I've also not seen anyone else make this claim.

giancarlostoro 52 minutes ago | parent

> I've also not seen anyone else make this claim.

That's what I call Steve Jobs style PR / Marketing you deflect the problem by making another problem to make it seem like you're fully aware. "You're holding the phone wrong"

rf15 14 minutes ago | parent

I've seen another poster successfully updating their Kernel from Ubuntu's "proposed" branch which already has the fix. God knows why they don't merge it into stable.

gnabgib 3 hours ago | parent

Discussion (842 points, 422 comments) https://news.ycombinator.com/item?id=50337608

jon128 2 hours ago | parent

CiCD of Gentoo based systems patched this as early as any other system.

I am hoping to see an indication that https://grsecurity.net/ patches preemptively mitigated CVE-2026-98432 but I'm feeling less optimistic.

This vulnerability has been a stark reminder to why in some places things are running on HardenedBSD instead of Linux.

InsidiousWombat 44 minutes ago | parent

Yeah attackers might not want to bother spending tokens on some niche OS but security thru obscurity only gives you so much

jon128 26 minutes ago | parent

FreeBSD is quietly prevalent in commercial and government settings. Juniper and NetApp are just two renowned examples. There have been and are many others.

Separate from any of those, a good chunk of America's more sensitive production database clusters, other workloads, and some network applications are scheduled by Nomad or Kubernetes running directly on a kernel that is not Linux.

The most popular kernel is not necessarily appropriate for all use cases or types of environments where high-value targets reside.

Directly downstream of FreeBSD, HardenedBSD achieved its long history of invulnerability to what were exploitable vulnerabilities in upstream through its advancements in the operating system layer.

  https://hardenedbsd.org/content/easy-feature-comparison
_

> but security thru obscurity

Arrogance is stupidity.

doctorpangloss 6 minutes ago | parent

Do you mean Kubernetes on Windows?

superkuh 1 hour ago | parent

For those not aware: Freenode.net is not Freenode as we all knew and loved it from the early 2000s to 2021. A hostile take-over of the Freenode LLC resulted in the loss of the domain name and some corporate assets. And the hostile takeover person, Andrew Lee, deleted the Freenode database. It no longer exists.

"Freenode" in 2026 is an entity actively hostile to open source software and while what they say here might be true, they are only saying it because it aligns with their biases. They are not a real news source.

My mitigation for this lack of patches has been using iptables.

    iptables -A INPUT -p tcp -m u32 --u32 "0>>24&0xF=6:15" -j DROP

maeln 1 hour ago | parent

The volunteer and staff that made up Freenode moved to libera.chat, which is the defacto freenode replacement, if anyone wanna know.

c0l0 1 hour ago | parent

It's rather uninteresting to note, once again, that Ubuntu has decided to do this. I would like to know the (official, if any - unofficial/speculative otherwise) reason WHY they have not.

It does not seem that complicated to patch, and kernel upgrades are a dime a dozen these days. So what is making them delay a fix for so long?

TacticalCoder 1 hour ago | parent

How do we feel now about having pointless services listening for no good reason on open ports?

And do we feel about running no firewall?

For example Linux works totally fine without running dhcpcd and without running avahi. But on many systems where people think they run "no service", these two shall have ports open on your network and happily listening.

Sure, it's typically "only" on your LAN: but how long before we see exploits affecting even private LANs?

Tighten your stuff up guys.

viraptor 45 minutes ago | parent

> about having pointless services listening for no good reason

I think you'll find that for most people, plugging the laptop in and having the network immediately available and automatically seeing their local printer is a pretty good reason.

InsidiousWombat 45 minutes ago | parent

> For example Linux works totally fine without running dhcpcd

how you refresh dhcp lease if there is no service taking care of ? Why you think DHCP is pointless ?

smackeyacky 38 minutes ago | parent

Use a static up when at home. I would agree it’s a bit pointless though.

halJordan 13 minutes ago | parent

These comments always misunderstand the long tail of the individual end user.

lousken 46 minutes ago | parent

They are busy migrating to rust, ubuntu will be safe soon, don't worry anyone!

warpspin 14 minutes ago | parent

It's not a zero-day if it's not the zeroth day anymore :-)