From DSA 608-1 : CAN-2004-0999 Mikulas Patocka discovered that malicious multiple-image (e.g. animated) GIF images can cause a segmentation fault in zgv. I don't think we patched this one... but I'm not sure it's really exploitable. DoS ? DoS what ?
This might impact xzgv as well.
The patches look the same to me. I think this issue is taken care of.
Closing. This issue was taken care of in the original upstrem patch.