Integer overflow in the pango_glyph_string_set_size function in
pango/glyphstring.c in Pango before 1.24 allows context-dependent
attackers to cause a denial of service (application crash) or possibly
execute arbitrary code via a long glyph string that triggers a
heap-based buffer overflow, as demonstrated by a long
document.location value in Firefox.
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BUGTRAQ:20090507 [oCERT-2009-001] Pango integer overflow in heap allocation size calculations
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