Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.Referenceshttps://github.com/libgd/libgd/blob/gd-2.2.4/CHANGELOG.mdhttp://www.debian.org/security/2017/dsa-3777https://github.com/libgd/libgd/commit/a49feeae76d41959d85ee733925a4cf40bac61b2http://www.securityfocus.com/bid/95843
