The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for November 2nd, 2018

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This two-year-old X.org give-me-root hole is so trivial to exploit, you can fit it in a single tweet • The Register

Posted by jpluimers on 2018/11/02

If you run X.org, then patch now because of [WayBack] This two-year-old X.org give-me-root hole is so trivial to exploit, you can fit it in a single tweet • The Register

Overwrite arbitrary files? Load arbitrary code? As setuid root? Sure, why not!

This one got introduced in 2016, which is a lot more recent than an issue discovered in 2014 that was “ancient”: [WayBack] ‘Critical’ security bugs dating back to 1987 found in X Window • The Register:

27-year-old flaw and others slain in open-source patch batch

Via eXploit X: Give Me Root” – Computerphile

–jeroen

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Posted in History, Power User, Security | Leave a Comment »

IPv4 to IPv6 conversion on a load balancer causing rare packet loss

Posted by jpluimers on 2018/11/02

Nice find on not so nice packet conversion: [WayBack] Fun with IPv6 We were investigating packet loss. The loss rate was very low (smaller than 1 of 1000) but as UDP was used, it caused rare but noticeab… – Martin Seeger – Google+

Basically the load balancer could not cope well converting empty IPv4 UDP checksums to IPv6 and back.

Or like Kris mentioned it: [WayBack] Null. In Zahlen: -1., causing a nice set of comments to be posted on short term solutions versus long time forgotten problems.

–jeroen

Posted in Internet, IPv4, IPv6, Network-and-equipment, Power User, routers | Leave a Comment »

You are not Google (use UNPHAT) – The Isoblog.

Posted by jpluimers on 2018/11/02

and you are not Amazon or LinkedIn either.

Next time you find yourself Googling some cool new technology to (re)build your architecture around, I urge you to stop and follow UNPHAT instead:

  • Understand problem
  • eNumerate candidate solutions
  • Papers of candidates
  • Historical context of candidates
  • Advantages/disadvantages
  • Think!

More elaborate abstract: [WayBack] You are not Google (use UNPHAT) – The Isoblog.

Original article: [WayBack] You Are Not Google – Bradfield.

Video: Computer Science 186, 001 – Spring 2015 Introduction to Database Systems – Joseph Hellerstein Creative Commons 3.0: Attribution-NonCommercial-NoDerivs, Free Download & Streaming : Internet Archive

–jeroen

Posted in Infrastructure, LifeHacker, Power User | Leave a Comment »

Thread by @MaxFagin: “November is here, and that means a massive shift is coming. And by “massive” I am of course referring to the redefinition of the kilogram unit of mass […]”

Posted by jpluimers on 2018/11/02

Good read: Thread by @MaxFagin: “November is here, and that means a massive shift is coming. And by “massive” I am of course referring to the redefinitilogram unit of mass that the world has been building up to for more than 100 years. Let me explain: 1/ I’ve h […]” [WayBack]

via: [WayBack] Das Urkilogrann wird arbeitslos. Es wird durch eine Definition ersetzt, die auf physikalischen Effekten statt auf einem Sample basiert. – Kristian Köhntopp – Google+

–jeroen

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Posted in History, LifeHacker, Power User, science | Leave a Comment »

50 Battery Hacks – Battery Experts

Posted by jpluimers on 2018/11/02

I learned a few things from this list: [WayBack] 50 Battery Hacks – Battery Experts

Via: [WayBack] I learned a lot! – Lars Fosdal – Google+

–jeroen

Posted in LifeHacker, Power User | Leave a Comment »

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