Local root vulnerability in snap-confine [LWN.net]

Local root vulnerability in snap-confine

Posted Feb 21, 2022 14:15 UTC (Mon) by zdzichu (subscriber, #17118)
In reply to: Local root vulnerability in snap-confine by adobriyan
Parent article: Local root vulnerability in snap-confine

Everything except NULL and / is allowed in filenames. But it doesn't mean it's a good idea to use it. Please take time to read the essay, it is eye-opening.

And you do not need a website. Just touch -- --foot-shooter (or touch -- -rf\ . if you like).

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Local root vulnerability in snap-confine

Posted Feb 21, 2022 17:33 UTC (Mon) by adobriyan (subscriber, #30858) [Link] (1 responses)

David Wheeler's proposal would ban every ~1/(26+26+10+4) = 1/66-th video downloaded by youtube-dl. It is too late to ban anything.

GNU ls(1) started to quote filenames with spaces at some point, it was huge step in right direction because copy paste suddenly started working "out of the box". More features lke this are necessary.

Local root vulnerability in snap-confine

Posted Feb 21, 2022 18:04 UTC (Mon) by Cyberax (✭ supporter ✭, #52523) [Link]

> David Wheeler's proposal would ban every ~1/(26+26+10+4) = 1/66-th video downloaded by youtube-dl. It is too late to ban anything.

Just add automatic escaping for such names.