[PDFBOX-2498] ArrayIndexOutOfBoundsException in PreflightParser.lastIndexOf

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.7, 1.8.8, 2.0.0
• Fix Version/s: 1.8.8, 2.0.0
• Component/s: Preflight
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 14/Nov/14 07:30
• Updated: 13/Dec/14 14:15
• Resolved: 14/Nov/14 08:11

Description

041278.pdf preflight fail: java.lang.ArrayIndexOutOfBoundsException: 2048
	at org.apache.pdfbox.preflight.parser.PreflightParser.lastIndexOf(PreflightParser.java:874)
	at org.apache.pdfbox.pdfparser.NonSequentialPDFParser.getStartxrefOffset(NonSequentialPDFParser.java:786)
	at org.apache.pdfbox.pdfparser.NonSequentialPDFParser.initialParse(NonSequentialPDFParser.java:406)
	at org.apache.pdfbox.preflight.parser.PreflightParser.initialParse(PreflightParser.java:244)
	at org.apache.pdfbox.pdfparser.NonSequentialPDFParser.parse(NonSequentialPDFParser.java:938)
	at org.apache.pdfbox.preflight.parser.PreflightParser.parse(PreflightParser.java:192)
	at org.apache.pdfbox.preflight.parser.PreflightParser.parse(PreflightParser.java:174)
	at org.apache.pdfbox.preflight.parser.PreflightParser.parse(PreflightParser.java:162)
	at pdfboxpageimageextraction.PreflightTest.main(PreflightTest.java:41)

The cause is a bug in a check that there is nothing after EOF except one eol. The bug happens if there is only one byte. This has to be rewritten so that:

• more than 2 bytes: error
• 2 bytes: 0x0d 0x0a allowed
• 1 byte: 0x0a allowed