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Some vulnerabilities have been reported in Adobe Reader and Acrobat, which can be exploited by malicious people to compromise a user's system. 1) A boundary error in the processing of Huffman encoded JBIG2 text region segments can be exploited to cause a heap-based buffer overflow and potentially execute arbitrary code via a specially crafted PDF document. The vulnerability is confirmed in version 9.1.0. Other versions may also be affected. 2) A boundary error exists in the processing of U3D model files contained in PDF documents. This can be exploited to cause a stack-based buffer overflow and potentially execute arbitrary code via a specially crafted extension block included in an U3D model file. 3) An integer overflow error exists when processing "FlateDecode" filter parameters. This can be exploited to cause a heap-based buffer overflow and potentially execute arbitrary code via a specially crafted PDF file. 4) An error when processing TrueType fonts contained in PDF documents can be exploited to corrupt memory and potentially execute arbitrary code. 5) An error in the processing of JBIG2 data can be exploited to corrupt memory and potentially execute arbitrary code. 6) Another unspecified error can be exploited to corrupt memory and potentially execute arbitrary code. 7) Multiple errors in the JBIG2 filter can be exploited to cause heap-based buffer overflows and potentially execute arbitrary code. 8) An error in the JBIG2 filter can be exploited to cause a heap-based buffer overflow and potentially execute arbitrary code. 9) Multiple errors can be exploited to cause heap-based buffer overflows and potentially execute arbitrary code.
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