Opera · Opera · CVE-2015-6778
**Name of the Vulnerable Software and Affected Versions**
Google Chrome versions prior to 47.0.2526.73
Opera (affected versions not specified)
**Description**
The issue allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via a PDF document containing crafted data with JBIG2 compression. This is due to a problem in the CJBig2 SymbolDict class in fxcodec/jbig2/JBig2 SymbolDict.cpp in PDFium.
**Recommendations**
For Google Chrome versions prior to 47.0.2526.73, update to version 47.0.2526.73 or later.
For Opera, at the moment, there is no information about a newer version that contains a fix for this issue.