gd/backport-CVE-2021-38115.patch

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2021-08-14 14:54:39 +08:00
From 8b111b2b4a4842179be66db68d84dda91a246032 Mon Sep 17 00:00:00 2001
From: maryam ebrahimzadeh <maryam.ebr@student.sharif.edu>
Date: Mon, 19 Jul 2021 10:07:13 +0430
Subject: [PATCH 1/1] fix read out-of-bands in reading tga header file
https://github.com/libgd/libgd/commit/8b111b2b4a4842179be66db68d84dda91a246032
---
src/gd_tga.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/gd_tga.c b/src/gd_tga.c
index cae9428..286febb 100644
--- a/src/gd_tga.c
+++ b/src/gd_tga.c
@@ -191,7 +191,11 @@ int read_header_tga(gdIOCtx *ctx, oTga *tga)
return -1;
}
- gdGetBuf(tga->ident, tga->identsize, ctx);
+
+ if (gdGetBuf(tga->ident, tga->identsize, ctx) != tga->identsize) {
+ gd_error("fail to read header ident");
+ return -1;
+ }
}
return 1;
--
2.30.2