| Andrew Geissler | eef6386 | 2021-01-29 15:58:13 -0600 | [diff] [blame] | 1 | From 799eb6a3af8a3dd81e2429bf11a72a57e541f908 Mon Sep 17 00:00:00 2001 |
| 2 | From: "Eric S. Raymond" <esr@thyrsus.com> |
| 3 | Date: Sun, 17 Mar 2019 12:37:21 -0400 |
| 4 | Subject: [PATCH] Address SF bug #119: MemorySanitizer: FPE on unknown address |
| 5 | |
| 6 | --- |
| 7 | dgif_lib.c | 2 +- |
| 8 | 1 file changed, 1 insertion(+), 1 deletion(-) |
| 9 | |
| 10 | Upstream-status: Backport [https://sourceforge.net/p/giflib/code/ci/799eb6a3af8a3dd81e2429bf11a72a57e541f908/] |
| 11 | CVE: CVE-2019-15133 |
| 12 | |
| 13 | --- a/lib/dgif_lib.c 2021-01-13 19:28:18.923493586 +0100 |
| 14 | +++ b/lib/dgif_lib.c 2021-01-13 19:28:55.245863085 +0100 |
| 15 | @@ -1099,7 +1099,7 @@ DGifSlurp(GifFileType *GifFile) |
| 16 | |
| 17 | sp = &GifFile->SavedImages[GifFile->ImageCount - 1]; |
| 18 | /* Allocate memory for the image */ |
| 19 | - if (sp->ImageDesc.Width < 0 && sp->ImageDesc.Height < 0 && |
| 20 | + if (sp->ImageDesc.Width <= 0 && sp->ImageDesc.Height <= 0 && |
| 21 | sp->ImageDesc.Width > (INT_MAX / sp->ImageDesc.Height)) { |
| 22 | return GIF_ERROR; |
| 23 | } |