guix/gnu/packages/patches/expat-CVE-2018-20843.patch
Jack Hill 5a836ce38c
gnu: expat: fix CVE-2018-20843
* gnu/packages/xml.scm (expat)[replacement]: New field.
(expat/fixed): New variable.
* gnu/packages/patches/expat-CVE-2018-20843.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add patch file.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>
2019-07-12 00:39:01 +02:00

21 lines
649 B
Diff

Fix extraction of namespace prefix from XML name.
Fixes CVE-2018-20843
This patch comes from upstream commit 11f8838bf99ea0a6f0b76f9760c43704d00c4ff6
https://github.com/libexpat/libexpat/commit/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6
CVE is https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20843
diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
index 30d55c5..737d7cd 100644
--- a/lib/xmlparse.c
+++ b/lib/xmlparse.c
@@ -6071,7 +6071,7 @@ setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *elementType)
else
poolDiscard(&dtd->pool);
elementType->prefix = prefix;
-
+ break;
}
}
return 1;