path: root/system/libxslt/CVE-2019-13117.patch

From c5eb6cf3aba0af048596106ed839b4ae17ecbcb1 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sat, 27 Apr 2019 11:19:48 +0200
Subject: [PATCH] Fix uninitialized read of xsl:number token

Found by OSS-Fuzz.
---
 libxslt/numbers.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libxslt/numbers.c b/libxslt/numbers.c
index 89e1f668..75c31eba 100644
--- a/libxslt/numbers.c
+++ b/libxslt/numbers.c
@@ -382,7 +382,10 @@ xsltNumberFormatTokenize(const xmlChar *format,
 		tokens->tokens[tokens->nTokens].token = val - 1;
 		ix += len;
 		val = xmlStringCurrentChar(NULL, format+ix, &len);
-	    }
+	    } else {
+                tokens->tokens[tokens->nTokens].token = (xmlChar)'0';
+                tokens->tokens[tokens->nTokens].width = 1;
+            }
 	} else if ( (val == (xmlChar)'A') ||
 		    (val == (xmlChar)'a') ||
 		    (val == (xmlChar)'I') ||
-- 
2.21.0