50 lines
2.2 KiB
Markdown
50 lines
2.2 KiB
Markdown
News for ikiwiki 3.20160506:
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To mitigate [[!cve CVE-2016-3714]] and similar ImageMagick security vulnerabilities,
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the `\[[!img]]` directive is now restricted to these common web formats by
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default:
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* JPEG (`.jpg`, `.jpeg`)
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* PNG (`.png`)
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* GIF (`.gif`)
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* SVG (`.svg`)
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(In particular, by default resizing PDF files is no longer allowed.)
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Additionally, resized SVG files are displayed in the browser as SVG
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instead of being converted to PNG.
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If all users who can attach images are fully trusted, this restriction
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can be removed with the new img\_allowed\_formats setup option.
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See [[ikiwiki/directive/img]] for more details.
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ikiwiki 3.20160506 released with [[!toggle text="these changes"]]
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[[!toggleable text="""
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* [ [[Simon McVittie|smcv]] ]
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* HTML-escape error messages, in one case avoiding potential cross-site
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scripting (OVE-20160505-0012)
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* Mitigate ImageMagick vulnerabilities such as CVE-2016-3714:
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- img: force common Web formats to be interpreted according to extension,
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so that "allowed\_attachments: '*.jpg'" does what one might expect
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- img: restrict to JPEG, PNG and GIF images by default, again mitigating
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CVE-2016-3714 and similar vulnerabilities
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- img: check that the magic number matches what we would expect from
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the extension before giving common formats to ImageMagick
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* d/control: use https for Homepage
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* d/control: add Vcs-Browser
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* [ [[Joey Hess|joey]] ]
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* img: Add back support for SVG images, bypassing ImageMagick and
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simply passing the SVG through to the browser, which is supported by all
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commonly used browsers these days.
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SVG scaling by img directives has subtly changed; where before
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size=wxh would preserve aspect ratio, this cannot be done when passing
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them through and so specifying both a width and height can change
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the SVG's aspect ratio.
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* loginselector: When only openid and emailauth are enabled, but
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passwordauth is not, avoid showing a "Other" box which opens an
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empty form.
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* [ [[Amitai Schlair|schmonz]] ]
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* mdwn: Process .md like .mdwn, but disallow web creation.
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* [ Florian Wagner ]
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* git: Correctly handle filenames starting with a dash in add/rm/mv."""]]
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