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png_format_buffer function in pngerror.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data.  NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.","Type":"Description","Title":"CVE-2011-2501"},{"CveYear":"2011","CveId":"2501","Ordinal":"2","NoteData":"2011-07-17","Type":"Other","Title":"Published"},{"CveYear":"2011","CveId":"2501","Ordinal":"3","NoteData":"2017-08-28","Type":"Other","Title":"Modified"}]}}}