Save-webP-as-extension
libwebp
Save-webP-as-extension | libwebp | |
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2 | 13 | |
33 | 1,913 | |
- | 0.9% | |
5.4 | 8.8 | |
5 days ago | 4 days ago | |
JavaScript | C | |
Mozilla Public License 2.0 | BSD 3-clause "New" or "Revised" License |
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Save-webP-as-extension
- Pain in the ass
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Whats going on with .webp and why are more and more internet images being converted to it?
I just use a webP converter on Firefox because I ran into this issue quite a bit.
libwebp
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Google assigns a CVE for libwebp and gives it a 10.0 score
The thing that concerns me most is looking at the fix it is very difficult to see why this fix is correct. It also appears as there is lots of code without explicit bounds checks. It makes me worried because while the logic may be safe this makes the logic very complex. I wonder what the cost would be to add an explicit, local bounds check at every array access. This would serve as a backup that is much easier to verify. I suspect the cost would be relatively small. Small enough that I personally would be happy to pay it.
https://github.com/webmproject/libwebp/commit/902bc919033134...
This is also a great reminded that fuzzing isn't a solution to memory unsafe languages and libraries. If anything the massive amount of bugs found via fuzzing should scare us as it is likely only scratching the surface of the vulnerabilities that still lie in the code, a couple too many branches away from being likely to be found by fuzzing.
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The WebP 0day
There's a follow-up fix, according to Debian[0]: https://github.com/webmproject/libwebp/commit/95ea5226c87044...
[0]: https://security-tracker.debian.org/tracker/CVE-2023-4863
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CVE-2023-4863: Heap buffer overflow in WebP (Chrome)
The breakage [0] was introduced by the creator [1] of the project. If you want to audit 1674 commits over the past 12 years, it'd be easier to just audit the full project.
[0] https://github.com/webmproject/libwebp/commit/21735e06f7c1cb...
[1] https://github.com/webmproject/libwebp/commit/c3f41cb47e5f32...
- Convenient CPU feature detection and dispatch in the Magnum Engine
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Whats going on with .webp and why are more and more internet images being converted to it?
If you like the command line, then you can use ffmpeg and ImageMagick, or use libwebp directly
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What's up with people hating WebP?
The webp parser code is open source. Which means that even if Google decides to hide/obscure the code for webp, they'd legally not be allowed to prevent you from using older versions of the webp parser library. The only thing they could do is patent it, and then companies in the US (which has software patents, unfortunately) would have to pay royalties to decode it anyway; but here comes the next point
What are some alternatives?
dont-accept-webp - Don't "Accept" image/webP - extension for Firefox
libjpeg-turbo - Main libjpeg-turbo repository
WebPShop - Photoshop plug-in for opening and saving WebP images
BrowserBoxPro - :cyclone: BrowserBox is Web application virtualization via zero trust remote browser isolation and secure document gateway technology. Embed secure unrestricted webviews on any device in a regular webpage. Multiplayer embeddable browsers, open source! [Moved to: https://github.com/BrowserBox/BrowserBox]
webp - webp for the Windows build of ImageMagick
image - [mirror] Go supplementary image libraries
pik - A new lossy/lossless image format for photos and the internet
libavif - libavif - Library for encoding and decoding .avif files
QuickLook - Bring macOS “Quick Look” feature to Windows
Electron - :electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS
sydent - Sydent: Reference Matrix Identity Server
zlib-ng - zlib replacement with optimizations for "next generation" systems.