From: Martin Matuska <martin@matuska.org>
Date: Wed, 25 Jan 2017 00:29:16 +0000 (+0100)
Subject: WARC reader: do not consider CR or LF as space in xstrpisotime()
X-Git-Tag: v3.3.0~42
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=23ccc71cc9869c0d6ddf04075432fe693abe2c73;p=thirdparty%2Flibarchive.git

WARC reader: do not consider CR or LF as space in xstrpisotime()
Fixes possible heap-buffer-overflow.

Reported-By:	OSS-Fuzz issue 382, 458
---

diff --git a/libarchive/archive_read_support_format_warc.c b/libarchive/archive_read_support_format_warc.c
index 8eda519eb..30cdaf9db 100644
--- a/libarchive/archive_read_support_format_warc.c
+++ b/libarchive/archive_read_support_format_warc.c
@@ -534,7 +534,7 @@ xstrpisotime(const char *s, char **endptr)
 
 	/* as a courtesy to our callers, and since this is a non-standard
 	 * routine, we skip leading whitespace */
-	while (isspace((unsigned char)*s))
+	while (isblank((unsigned char)*s))
 		++s;
 
 	/* read year */