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nixpkgs/pkgs/development/libraries/libheif/1.4.0-CVE-2019-11471.patch
2019-05-23 10:06:11 +02:00

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Diff

Adapted from upstream commit 995a4283d8ed2d0d2c1ceb1a577b993df2f0e014
--- a/libheif/heif_context.cc
+++ b/libheif/heif_context.cc
@@ -571,6 +571,11 @@
image->set_is_alpha_channel_of(refs[0]);
auto master_iter = m_all_images.find(refs[0]);
+ if (master_iter == m_all_images.end()) {
+ return Error(heif_error_Invalid_input,
+ heif_suberror_Nonexisting_item_referenced,
+ "Non-existing alpha image referenced");
+ }
master_iter->second->set_alpha_channel(image);
}