Sunday, July 16, 2023
Floodgap downtime
Monday, June 5, 2023
Apple provides grated cheese with the wine
It's nice that the stench of Intel has finally drifted off Apple's product line, leaving us once again with a RISC cheese grater atop the heap. Still, though (seriously now), no discrete GPUs for those six PCIe slots? Does this mean you're stuck with the MKULTRA M2 Ultra's? That's like throwing a party where you have to wear headphones to hear the music. But at least if you were using it for virtualized x86_64 workloads, Rosetta 2's got you covered, and no one's gonna pull an IBM QuickTransit this time — suggesting x86_64 binaries will have a far longer shelf life on Apple silicon than PowerPC binaries ever did on Intel. At $7000 for the base model, though, I think I'll stick to my Raptor Talos II.
Apple also proved themselves able and willing to compete in drinking games with macOS Sonoma (but fine vintages, mind you), so start your photocopiers. Quick, drink if you thought Apple would basically bring back the Dashboard, which is the first thing I disable when installing Tiger from scratch. If you're Mozilla, drink if you thought Apple would rip off Firefox containers in Safari. And, well, I should have a drink too, because now Power Mac upgraders will get a built-in TenFourFoxBox for desktop web apps. We didn't get macOS Arvin, macOS Edison (now with more power saving features!) or macOS Chico, but don't worry: it will still cost Peanuts.
Don't get me started on that goggles thing.
Thursday, April 20, 2023
April patch set for TenFourFox
However, there is one feature update in this patchset: a CSS grid whitelist. Firefox 45, which is the heavily patched underpinning of TenFourFox FPR, has a partially working implementation of CSS grid as explained in this MDN article. CSS grid layout is a more flexible and more generalized way of putting elements on a page than the earlier tables method. Go ahead and try to read that article with the current build before you pull the changes and you'll notice that the page has weirdly scrunched up elements (before a script runs and blanks the whole page with an error). After you build with the updates, you'll notice that while the page still doesn't lay out perfectly right, you can now actually read things. That's because there's a whitelist entry now in TenFourFox that allows grid automatically on developer.mozilla.org (a new layout.css.grid.host.developer.mozilla.org preference defaults to true which is checked for by new code in the CSS parser, and there is also an entry in the problematic scripts filter to block the script that ends up blanking the page when it bugs out). The other issues on that page are unrelated to CSS grid.
This will change things for people who set the global pref layout.css.grid.enabled to true, which we have never shipped in TenFourFox because of (at times significant) bugs in the implementation. This pref is now true, but unless the URL hostname is in the whitelist, CSS grid will still be disabled dynamically and is never enabled for chrome resources. If you set the global pref to false, however, then CSS grid is disabled everywhere. If you were using this for a particular site that lays out better with grid on, post the URL to issue 659 or in the comments and I'll consider adding it to the default set (or add it yourself in about:config).
The next ESR (Firefox 115) comes out end of June-early July, and we'll do the usual root updates then.
Tuesday, April 18, 2023
Power Mac ransomware? Yes, but it's complicated
What caught my eye in the article was a report of PowerPC builds. I can't seem to get an alleged sample to analyse (feel free to contact me at ckaiser at floodgap dawt com if you can provide one) but the source for that assertion appears to be this tweet.
Can that file run on a Power Mac? It appears it's indeed a PowerPC binary, but the executable format is ELF and not Mach-O, so the file can only run natively on Linux or another ELF-based operating system, not PowerPC Mac OS X (or, for that matter, Mac OS 9 and earlier). Even if the raw machine code were sprayed into memory for an exploitable Mac application to be tricked into running, ELF implies System V ABI, which is similar but different from the PowerOpen ABI used for PowerPC-compatible versions of Mac OS, and we haven't even started talking about system calls. Rather than a specific build targetting Power Macs, most likely this is evidence that the LockBit builders simply ran every crosscompiler variation they could find on their source code: there are no natively little-endian 32-bit PowerPC CPUs, for example, yet there's a ppcle build visible in the screenshot. Heck, there's even an s390x build. Parents, don't let your mainframes out unsupervised.
This is probably a good time to mention that I've been working on security patches for TenFourFox and a couple minor feature adjustments, so stay tuned. It's been awhile but such are hobbies.
Sunday, September 18, 2022
September patch set for TenFourFox
If you're new to building your own copy of TenFourFox, this article from last year is still current with the process and what's out there for alternatives and assistance.