Free, Libre, and Open Source Software, Open Data, and Open Access
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Monado accepted for XROS 2023!
We're proud to announce that Monado, the free and open source XR platform, has been accepted as a mentoring organization for XROS, the XR Open Source Fellowship Program.
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Examining OpenSSH Sandboxing and Privilege Separation – Attack Surface Analysis
The recent OpenSSH double-free vulnerability – CVE-2023-25136, created a lot of interest and confusion regarding OpenSSH’s custom security mechanisms – Sandbox and Privilege Separation. Until now, both of these security mechanisms were somewhat unnoticed and only partially documented. The double-free vulnerability raised interest for those who were affected and those controlling servers that use OpenSSH.
This blog post provides an in-depth analysis of OpenSSH’s attack surface and security measures.
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Emacs undo and me
In some weirdo chain my brain don’t fully understand but my fingers seem to know how to work. I can undo in one “direction” but then if I do anything else (just move the cursor or set the mark) it switches direction because the undos themselves are getting undone. It’s a mess but it somehow works, even for undos really far back.
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Mastodon timelines for teams
Because saving and searching Mastodon data is a controversial topic in the fediverse — none of us wants to recapitulate Big Social — I’ve focused thus far on queries that explore recent Mastodon flow, of which there are plenty more to write. But nobody should mind me remembering my own home timeline, so a few weeks ago I made a tool to read it hourly and add new toots to a Postgres table.
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Where the sidewalk ends: Most cities don’t map their own pedestrian networks. Now, researchers have built the first open-source tool to let planners do just that.
The paper, “Mapping the Walk: A Scalable Computer Vision Approach for Generating Sidewalk Network Datasets from Aerial Imagery,” appears online in the journal Computers, Environment and Urban Systems. The authors are Hosseini; Sevtsuk, who is the Charles and Ann Spaulding Career Development Associate Professor of Urban Science and Planning in DUSP and head of MIT’s City Form Lab; Fabio Miranda, an assistant professor of computer science at the University of Illinois at Chicago; Roberto M. Cesar, a professor of computer science at the University of Sao Paulo; and Claudio T. Silva, Institute Professor of Computer Science and Engineering at New York University (NYU) Tandon School of Engineering, and professor of data science at the NYU Center for Data Science.
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Should you trust Elsevier?
The fact that Elsevier fits the consensus definition of a “predatory publisher” so well is thus only one of many reasons why data kraken Elsevier is so reviled in the academic community, but a reminder of it seems to have triggered the “we really can be trusted, honestly, this time” wolf-in-sheep-clothing-reflex in the RELX CCO Dr. Abrahams, such that he responded: [...]