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tcpdump
tcpdump-CVE-2018-16451.patch
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File tcpdump-CVE-2018-16451.patch of Package tcpdump
From 96480ab95308cd9234b4f09b175ebf60e17792c6 Mon Sep 17 00:00:00 2001 From: Francois-Xavier Le Bail <devel.fx.lebail@orange.fr> Date: Fri, 3 Nov 2017 18:21:27 +0100 Subject: [PATCH] (for 4.9.3) SMB: Add two missing bounds checks --- print-smb.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/print-smb.c b/print-smb.c index 5af01aea0..944b8d28a 100644 --- a/print-smb.c +++ b/print-smb.c @@ -371,16 +371,21 @@ print_trans(netdissect_options *ndo, ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); if (bcc > 0) { smb_fdata(ndo, data1 + 2, f2, maxbuf - (paramlen + datalen), unicodestr); - - if (strcmp((const char *)(data1 + 2), "\\MAILSLOT\\BROWSE") == 0) { +#define MAILSLOT_BROWSE_STR "\\MAILSLOT\\BROWSE" + ND_TCHECK2(*(data1 + 2), strlen(MAILSLOT_BROWSE_STR) + 1); + if (strcmp((const char *)(data1 + 2), MAILSLOT_BROWSE_STR) == 0) { print_browse(ndo, param, paramlen, data, datalen); return; } +#undef MAILSLOT_BROWSE_STR - if (strcmp((const char *)(data1 + 2), "\\PIPE\\LANMAN") == 0) { +#define PIPE_LANMAN_STR "\\PIPE\\LANMAN" + ND_TCHECK2(*(data1 + 2), strlen(PIPE_LANMAN_STR) + 1); + if (strcmp((const char *)(data1 + 2), PIPE_LANMAN_STR) == 0) { print_ipc(ndo, param, paramlen, data, datalen); return; } +#undef PIPE_LANMAN_STR if (paramlen) smb_fdata(ndo, param, f3, min(param + paramlen, maxbuf), unicodestr);
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