From 7e0793e15e21f68337e130c67b031ca38edf055f Mon Sep 17 00:00:00 2001
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From: Aymeric Moizard <amoizard@gmail.com>
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Date: Mon, 5 Sep 2016 15:01:53 +0200
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Subject: [PATCH] * fix bug report: sr #109133: Heap buffer overflow in
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utility function *osip_clrncpy* https://savannah.gnu.org/support/?109133
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Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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---
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src/osipparser2/osip_port.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/src/osipparser2/osip_port.c b/src/osipparser2/osip_port.c
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index 0e64147..d8941b0 100644
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--- a/src/osipparser2/osip_port.c
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+++ b/src/osipparser2/osip_port.c
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@@ -1291,8 +1291,10 @@ osip_clrncpy (char *dst, const char *src, size_t len)
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char *p;
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size_t spaceless_length;
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- if (src == NULL)
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+ if (src == NULL || len == 0) {
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+ *dst = '\0';
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return NULL;
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+ }
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/* find the start of relevant text */
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pbeg = src;
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--
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2.11.0
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