[PDFBOX-5352] ArrayIndexOutOfBoundsException in PDSeparation.tintTransform()

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.25
• Fix Version/s: 2.0.26, 3.0.0 PDFBox
• Component/s: Rendering
• External issue URL: https://gitlab.freedesktop.org/poppler/poppler/-/issues/1184
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 24/Dec/21 11:15
• Updated: 21/Apr/22 15:38
• Resolved: 24/Dec/21 11:24

Description

I get this with the attached file from the linked poppler issue

ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3
    org.apache.pdfbox.pdmodel.graphics.color.PDSeparation.tintTransform(PDSeparation.java:222)
    org.apache.pdfbox.pdmodel.graphics.color.PDSeparation.toRGBImage(PDSeparation.java:169)
    org.apache.pdfbox.pdmodel.graphics.color.PDIndexed.initRgbColorTable(PDIndexed.java:152)
    org.apache.pdfbox.pdmodel.graphics.color.PDIndexed.<init>(PDIndexed.java:93)
    org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace.create(PDColorSpace.java:188)

The cause is that the range array is too short (7 elements for CMYK).

I'll catch this in the constructor and return an IOException. If there's a complaint then we could change the tintTransform() method so that it takes the minimum of alt.length and result.length.