libpcap/backport-CVE-2024-8006.patch
xingwei f0fd04100f fix CVE-2023-7256 CVE-2024-8006
(cherry picked from commit a5629b88a5a9c77a033e0019b9e6cfce240941bd)
2024-09-24 10:34:51 +08:00

44 lines
1.5 KiB
Diff

From 8a633ee5b9ecd9d38a587ac9b204e2380713b0d6 Mon Sep 17 00:00:00 2001
From: Nicolas Badoux <n.badoux@hotmail.com>
Date: Mon, 19 Aug 2024 12:31:53 +0200
Subject: [PATCH] makes pcap_findalldevs_ex errors out if the directory does
not exist
(backported from commit 0f8a103469ce87d2b8d68c5130a46ddb7fb5eb29)
Conflict:NA
Reference:https://github.com/the-tcpdump-group/libpcap/commit/8a633ee5b9ecd9d38a587ac9b204e2380713b0d6
---
pcap-new.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/pcap-new.c b/pcap-new.c
index be91b3f8db..d449ee623c 100644
--- a/pcap-new.c
+++ b/pcap-new.c
@@ -230,6 +230,13 @@ int pcap_findalldevs_ex(const char *source, struct pcap_rmtauth *auth, pcap_if_t
#else
/* opening the folder */
unixdir= opendir(path);
+ if (unixdir == NULL) {
+ DIAG_OFF_FORMAT_TRUNCATION
+ snprintf(errbuf, PCAP_ERRBUF_SIZE,
+ "Error when listing files: does folder '%s' exist?", path);
+ DIAG_ON_FORMAT_TRUNCATION
+ return -1;
+ }
/* get the first file into it */
filedata= readdir(unixdir);
@@ -237,7 +244,7 @@ int pcap_findalldevs_ex(const char *source, struct pcap_rmtauth *auth, pcap_if_t
if (filedata == NULL)
{
DIAG_OFF_FORMAT_TRUNCATION
- snprintf(errbuf, PCAP_ERRBUF_SIZE, "Error when listing files: does folder '%s' exist?", path);
+ snprintf(errbuf, PCAP_ERRBUF_SIZE, "Error when listing files: does folder '%s' contain files?", path);
DIAG_ON_FORMAT_TRUNCATION
closedir(unixdir);
return -1;