Out-of-bounds reading in png_set_sPLT().
vulners.com/securityvulns/securityvulns:doc:15095
vulners.com/securityvulns/securityvulns:doc:15125
vulners.com/securityvulns/securityvulns:doc:15126
vulners.com/securityvulns/securityvulns:doc:15127