|Date: (C)2009-04-16 (M)2017-10-04|
|CVSS Score: 9.3||Access Vector: NETWORK|
|Exploitability Subscore: 8.6||Access Complexity: MEDIUM|
|Impact Subscore: 10.0||Authentication: NONE|
| ||Confidentiality: COMPLETE|
| ||Integrity: COMPLETE|
| ||Availability: COMPLETE|
Heap-based buffer overflow in the big2_decode_symbol_dict function (jbig2_symbol_dict.c) in the JBIG2 decoding library (jbig2dec) in Ghostscript 8.64, and probably earlier versions, allows remote attackers to execute arbitrary code via a PDF file with a JBIG2 symbol dictionary segment with a large run length value.