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Mozilla Firefox and Thunderbird Characters mapped to U+FFFD in 8 bit encodings cause subsequent character to vanish

oval:org.mitre.oval:def:11863

intl/uconv/util/nsUnicodeDecodeHelper.cpp in Mozilla Firefox before 3.6.7 and Thunderbird before 3.1.1 inserts a U+FFFD sequence into text in certain circumstances involving undefined positions which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks via crafted 8-bit text.

Family:
windows
Status:
ACCEPTED
Platform(s):
  • Microsoft Windows Server 2008
  • Microsoft Windows XP
  • Microsoft Windows Server 2003
  • Microsoft Windows 7
  • Microsoft Windows 2000
  • Microsoft Windows Vista
Class:
vulnerability
Reference(s):
  • CVE-2010-1210
Product(s):
  • Mozilla Thunderbird
  • Mozilla Firefox