Out-of-bounds Write Vulnerability in PHP's imagegammacorrect Function

CVE-2016-7127 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

The imagegammacorrect function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate gamma values, which allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact by providing different signs for the second and third arguments.

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