File 0002-vcc.y-fix-infinite-loop-with-lower-case-he... of Package libical

Overview Repositories Revisions Requests Users Attributes Meta

File 0002-vcc.y-fix-infinite-loop-with-lower-case-hex-digits.patch of Package libical (Revision f407c1f50b66b5f3d93129df18708eb6)

Currently displaying revision f407c1f50b66b5f3d93129df18708eb6 , Show latest

From bf83a0d664f46229836852f5b41539c263c3b921 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@inai.de>
Date: Mon, 17 Sep 2018 16:36:36 +0200
Subject: [PATCH 2/5] vcc.y - fix infinite loop with lower-case hex digits
References: https://github.com/libical/libical/pull/354

When lower-case hex digits are used in a quoted-printable-encoded
character, an infinite loop would occur in the vcard parser.

"N;ENCODING=QUOTED-PRINTABLE:=c3=a4=c3=b6;=c3=bC=c3=9f\n"

References: #353
---
 src/libicalvcal/vcc.c | 2 ++
 src/libicalvcal/vcc.y | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/libicalvcal/vcc.c b/src/libicalvcal/vcc.c
index c2a743c2..29354df4 100644
--- a/src/libicalvcal/vcc.c
+++ b/src/libicalvcal/vcc.c
@@ -1132,6 +1132,8 @@ static int hexdigit_decode(char c)
 		return c - '0';
 	if (c >= 'A' && c <= 'F')
 		return c - 'A' + 10;
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
 	return -1;
 }
 
diff --git a/src/libicalvcal/vcc.y b/src/libicalvcal/vcc.y
index 45243df6..a052e9a2 100644
--- a/src/libicalvcal/vcc.y
+++ b/src/libicalvcal/vcc.y
@@ -953,6 +953,8 @@ static int hexdigit_decode(char c)
 		return c - '0';
 	if (c >= 'A' && c <= 'F')
 		return c - 'A' + 10;
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
 	return -1;
 }
 
-- 
2.19.1

Places

File 0002-vcc.y-fix-infinite-loop-with-lower-case-hex-digits.patch of Package libical (Revision f407c1f50b66b5f3d93129df18708eb6)

Places