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Ignore "GIF of death."

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// FREEBIE
This commit is contained in:
Matthew Chen 2017-08-29 16:25:08 -04:00
parent 7f15228aba
commit ef21c6d50c
1 changed files with 1 additions and 0 deletions
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Signal/src/util/NSData+Image.m
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@ -87,6 +87,7 @@ typedef NS_ENUM(NSInteger, ImageFormat) {
// Parse the GIF header to prevent the "GIF of death" issue.
//
// See: https://blog.flanker017.me/cve-2017-2416-gif-remote-exec/
// See: https://www.w3.org/Graphics/GIF/spec-gif89a.txt
- (BOOL)hasValidGifSize
{
const NSUInteger kSignatureLength = 3;