Errata overview
Errata ID 413
Date 2019-02-06
Source package libgd2
Fixed in version 2.2.4-2+deb9u4
This update addresses the following issues:
* Heap based buffer overflow in gd_color_match.c:gdImageColorMatch() in libgd
  as used in imagecolormatch() (CVE-2019-6977)
* Double free in the gdImage*Ptr in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c
Additional notes
CVE ID CVE-2019-6977
UCS Bug number #48614