traceroute/SOURCES/001-review-of-CWE-170-CWE-772.patch

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2022-05-17 10:47:18 +00:00
From 4bbfd43121e4c1f59074b1b0def9804c1890b2dc Mon Sep 17 00:00:00 2001
From: Jan Macku <jamacku@redhat.com>
Date: Mon, 19 Jul 2021 09:48:19 +0200
Subject: [PATCH] review of CWE-170, CWE-772
Resolves: #1938887
---
libsupp/clif.c | 2 ++
traceroute/traceroute.c | 7 ++++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/libsupp/clif.c b/libsupp/clif.c
index 4ef20e4..60ec291 100644
--- a/libsupp/clif.c
+++ b/libsupp/clif.c
@@ -229,10 +229,12 @@ static void err_bad_arg (const CLIF_option *optn, char c, int n) {
if (c) {
s = show_short (&tmp); /* always without arg... */
+ /* coverity[buffer_size_warning] - not a bug, s ends with '\0', see line 97 */
strncpy (ss, s, sizeof (ss));
s = show_short (optn);
} else {
s = show_long (&tmp); /* always without arg... */
+ /* coverity[buffer_size_warning] - not a bug, s ends with '\0', see line 97 */
strncpy (ss, s, sizeof (ss));
s = show_long (optn);
}
diff --git a/traceroute/traceroute.c b/traceroute/traceroute.c
index 4be9b24..0a29e36 100644
--- a/traceroute/traceroute.c
+++ b/traceroute/traceroute.c
@@ -217,8 +217,12 @@ static int getaddr (const char *name, sockaddr_any *addr) {
}
if (!ai) ai = res; /* anything... */
- if (ai->ai_addrlen > sizeof (*addr))
+ if (ai->ai_addrlen > sizeof (*addr)) {
+ /* Avoid of leaking res (CWE-772) */
+ freeaddrinfo (res);
return -1; /* paranoia */
+ }
+
memcpy (addr, ai->ai_addr, ai->ai_addrlen);
freeaddrinfo (res);
@@ -244,6 +248,7 @@ static void make_fd_used (int fd) {
close (nfd);
}
+ /* coverity[leaked_handle] - not a bug, see line 665 */
return;
}
--
2.31.1