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author | Marc-André Lureau <marcandre.lureau@gmail.com> | 2020-11-27 16:47:13 +0000 |
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committer | Marc-André Lureau <marcandre.lureau@gmail.com> | 2020-11-27 16:47:13 +0000 |
commit | 8f43a99191afb47ca3f3c6972f6306209f367ece (patch) | |
tree | bb7e5b1557ef32b34840dbc11c0d83ff8313aa25 | |
parent | ce94eba2042d52a0ba3d9e252ebce86715e94275 (diff) | |
parent | 69b0d71870eca29f04d59da277a42d6515c3edd6 (diff) | |
download | slirp-stable-4.2.zip slirp-stable-4.2.tar.gz slirp-stable-4.2.tar.bz2 |
Merge branch 'stable-4.2' into 'stable-4.2'stable-4.2
stable-4.2: Fix CVE-2020-29129, CVE-2020-29130
See merge request slirp/libslirp!58
-rw-r--r-- | src/ncsi.c | 4 | ||||
-rw-r--r-- | src/slirp.c | 4 |
2 files changed, 8 insertions, 0 deletions
@@ -148,6 +148,10 @@ void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) uint32_t checksum; uint32_t *pchecksum; + if (pkt_len < ETH_HLEN + sizeof(struct ncsi_pkt_hdr)) { + return; /* packet too short */ + } + memset(ncsi_reply, 0, sizeof(ncsi_reply)); memset(reh->h_dest, 0xff, ETH_ALEN); diff --git a/src/slirp.c b/src/slirp.c index dba7c98..9be58e2 100644 --- a/src/slirp.c +++ b/src/slirp.c @@ -756,6 +756,10 @@ static void arp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) return; } + if (pkt_len < ETH_HLEN + sizeof(struct slirp_arphdr)) { + return; /* packet too short */ + } + ar_op = ntohs(ah->ar_op); switch (ar_op) { case ARPOP_REQUEST: |