Xpdf vulnerabilities

In Xpdf prior to 4.04, the DCT (JPEG) decoder incorrectly allowed the 'interleaved' flag to be changed after the first scan of the image, leading to an unknown integer-related vulnerability in Stream.cc. The flaw may be triggered when processing crafted PDF files.

Infinite loop in Xpdf 4.06 and earlier, due to incorrect validation of progression order field in JPEG 2000 image.

Xpdf 4.06 and earlier versions contain a divide-by-zero vulnerability when a glyph in a Type 3 font has a zero height. This can lead to program crashes or unexpected behavior.

In Xpdf 4.05 (and earlier), a PDF object loop in a CMap, via the "UseCMap" entry, leads to infinite recursion and a stack overflow. This may cause an application crash when processing a malicious PDF file.

Xpdf version 4.04 can deadlock when processing a PDF object stream whose 'Length' field is in another object stream.

Xpdf has a vulnerability related to excessively large PDF page sizes, which can lead to a divide-by-zero error in the text extraction code. This issue was discovered during fuzz testing and is unlikely to occur in normal PDF files.