A vulnerability, which was classified as critical, has been found in Poppler up to 22.08.0 (Document Reader Software). This issue affects the function JBIG2Stream::readTextRegionSeg of the file JBIGStream.cc of the component JBIG2 Decoder. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Poppler prior to and including 22.08.0 contains an integer overflow in the JBIG2 decoder (JBIG2Stream::readTextRegionSeg() in JBIGStream.cc). Processing a specially crafted PDF file or JBIG2 image could lead to a crash or the execution of arbitrary code. This is similar to the vulnerability described by CVE-2022-38171 in Xpdf.

The weakness was shared 08/30/2022. The advisory is shared at gitlab.freedesktop.org. The identification of this vulnerability is CVE-2022-38784 since 08/26/2022. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at gitlab.freedesktop.org.

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• Document Reader Software

Name

• Poppler

Version

• 22.08

License

• open-source

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