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tcpdump.10759
tcpdump-CVE-2017-16808.patch
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File tcpdump-CVE-2017-16808.patch of Package tcpdump.10759
From 28f610026d901660dd370862b62ec328727446a2 Mon Sep 17 00:00:00 2001 From: Denis Ovsienko <denis@ovsienko.info> Date: Thu, 31 Aug 2017 21:15:37 +0100 Subject: [PATCH] CVE-2017-16808/AoE: Add a missing bounds check. In aoev1_reserve_print() check bounds before trying to print an Ethernet address. This fixes a buffer over-read discovered by Bhargava Shastry, SecT/TU Berlin. --- print-aoe.c | 1 + 1 file changed, 1 insertion(+) diff --git a/print-aoe.c b/print-aoe.c index 97e93df2e..2c78a55d3 100644 --- a/print-aoe.c +++ b/print-aoe.c @@ -325,6 +325,7 @@ aoev1_reserve_print(netdissect_options *ndo, goto invalid; /* addresses */ for (i = 0; i < nmacs; i++) { + ND_TCHECK2(*cp, ETHER_ADDR_LEN); ND_PRINT((ndo, "\n\tEthernet Address %u: %s", i, etheraddr_string(ndo, cp))); cp += ETHER_ADDR_LEN; }
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