The png_push_read_zTXt function in pngpread.c in libpng 1.0.x before
1.0.58, 1.2.x before 1.2.48, 1.4.x before 1.4.10, and 1.5.x before
1.5.10 allows remote attackers to cause a denial of service
(out-of-bounds read) via a large avail_in field value in a PNG image.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20120724 CVE Request: libpng: Out-of heap-based buffer read by inflating certain PNG images
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