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**Name of the Vulnerable Software and Affected Versions** XPDF version 4.04 **Description** A stack overflow in the `Catalog::readPageLabelTree2(Object*)` function allows attackers to cause a Denial of Service (DoS) via a crafted PDF file. **Recommendations** For XPDF version 4.04, as a temporary workaround, consider disabling the `Catalog::readPageLabelTree2(Object*)` function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.