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Mozilla Foundation Security Advisory 2012-101

Improper character decoding in HZ-GB-2312 charset

Announced
November 20, 2012
Reporter
Masato Kinugawa
Impact
High
Products
Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR
Fixed in
  • Firefox 17
  • Firefox ESR 10.0.11
  • SeaMonkey 2.14
  • Thunderbird 17
  • Thunderbird ESR 10.0.11

Description

Security researcher Masato Kinugawa found when HZ-GB-2312 charset encoding is used for text, the "~" character will destroy another character near the chunk delimiter. This can lead to a cross-site scripting (XSS) attack in pages encoded in HZ-GB-2312.

References