diff options
Diffstat (limited to 'sys-freebsd/freebsd-sources/files/freebsd-sources-10.1-cve-2014-8613.patch')
| -rw-r--r-- | sys-freebsd/freebsd-sources/files/freebsd-sources-10.1-cve-2014-8613.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sys-freebsd/freebsd-sources/files/freebsd-sources-10.1-cve-2014-8613.patch b/sys-freebsd/freebsd-sources/files/freebsd-sources-10.1-cve-2014-8613.patch new file mode 100644 index 000000000000..1e2fe912335c --- /dev/null +++ b/sys-freebsd/freebsd-sources/files/freebsd-sources-10.1-cve-2014-8613.patch @@ -0,0 +1,119 @@ +Index: sys/netinet/sctp_input.c +=================================================================== +--- sys/netinet/sctp_input.c (revision 277788) ++++ sys/netinet/sctp_input.c (working copy) +@@ -3649,6 +3649,9 @@ sctp_handle_stream_reset_response(struct sctp_tcb + /* huh ? */ + return (0); + } ++ if (ntohs(respin->ph.param_length) < sizeof(struct sctp_stream_reset_response_tsn)) { ++ return (0); ++ } + if (action == SCTP_STREAM_RESET_RESULT_PERFORMED) { + resp = (struct sctp_stream_reset_response_tsn *)respin; + asoc->stream_reset_outstanding--; +@@ -4037,7 +4040,7 @@ __attribute__((noinline)) + sctp_handle_stream_reset(struct sctp_tcb *stcb, struct mbuf *m, int offset, + struct sctp_chunkhdr *ch_req) + { +- int chk_length, param_len, ptype; ++ uint16_t remaining_length, param_len, ptype; + struct sctp_paramhdr pstore; + uint8_t cstore[SCTP_CHUNK_BUFFER_SIZE]; + uint32_t seq = 0; +@@ -4050,7 +4053,7 @@ __attribute__((noinline)) + int num_param = 0; + + /* now it may be a reset or a reset-response */ +- chk_length = ntohs(ch_req->chunk_length); ++ remaining_length = ntohs(ch_req->chunk_length) - sizeof(struct sctp_chunkhdr); + + /* setup for adding the response */ + sctp_alloc_a_chunk(stcb, chk); +@@ -4088,20 +4091,27 @@ strres_nochunk: + ch->chunk_length = htons(chk->send_size); + SCTP_BUF_LEN(chk->data) = SCTP_SIZE32(chk->send_size); + offset += sizeof(struct sctp_chunkhdr); +- while ((size_t)chk_length >= sizeof(struct sctp_stream_reset_tsn_request)) { ++ while (remaining_length >= sizeof(struct sctp_paramhdr)) { + ph = (struct sctp_paramhdr *)sctp_m_getptr(m, offset, sizeof(pstore), (uint8_t *) & pstore); +- if (ph == NULL) ++ if (ph == NULL) { ++ /* TSNH */ + break; ++ } + param_len = ntohs(ph->param_length); +- if (param_len < (int)sizeof(struct sctp_stream_reset_tsn_request)) { +- /* bad param */ ++ if ((param_len > remaining_length) || ++ (param_len < (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)))) { ++ /* bad parameter length */ + break; + } +- ph = (struct sctp_paramhdr *)sctp_m_getptr(m, offset, min(param_len, (int)sizeof(cstore)), ++ ph = (struct sctp_paramhdr *)sctp_m_getptr(m, offset, min(param_len, sizeof(cstore)), + (uint8_t *) & cstore); ++ if (ph == NULL) { ++ /* TSNH */ ++ break; ++ } + ptype = ntohs(ph->param_type); + num_param++; +- if (param_len > (int)sizeof(cstore)) { ++ if (param_len > sizeof(cstore)) { + trunc = 1; + } else { + trunc = 0; +@@ -4113,6 +4123,9 @@ strres_nochunk: + if (ptype == SCTP_STR_RESET_OUT_REQUEST) { + struct sctp_stream_reset_out_request *req_out; + ++ if (param_len < sizeof(struct sctp_stream_reset_out_request)) { ++ break; ++ } + req_out = (struct sctp_stream_reset_out_request *)ph; + num_req++; + if (stcb->asoc.stream_reset_outstanding) { +@@ -4126,6 +4139,9 @@ strres_nochunk: + } else if (ptype == SCTP_STR_RESET_ADD_OUT_STREAMS) { + struct sctp_stream_reset_add_strm *str_add; + ++ if (param_len < sizeof(struct sctp_stream_reset_add_strm)) { ++ break; ++ } + str_add = (struct sctp_stream_reset_add_strm *)ph; + num_req++; + sctp_handle_str_reset_add_strm(stcb, chk, str_add); +@@ -4132,6 +4148,9 @@ strres_nochunk: + } else if (ptype == SCTP_STR_RESET_ADD_IN_STREAMS) { + struct sctp_stream_reset_add_strm *str_add; + ++ if (param_len < sizeof(struct sctp_stream_reset_add_strm)) { ++ break; ++ } + str_add = (struct sctp_stream_reset_add_strm *)ph; + num_req++; + sctp_handle_str_reset_add_out_strm(stcb, chk, str_add); +@@ -4156,6 +4175,9 @@ strres_nochunk: + struct sctp_stream_reset_response *resp; + uint32_t result; + ++ if (param_len < sizeof(struct sctp_stream_reset_response)) { ++ break; ++ } + resp = (struct sctp_stream_reset_response *)ph; + seq = ntohl(resp->response_seq); + result = ntohl(resp->result); +@@ -4167,7 +4189,11 @@ strres_nochunk: + break; + } + offset += SCTP_SIZE32(param_len); +- chk_length -= SCTP_SIZE32(param_len); ++ if (remaining_length >= SCTP_SIZE32(param_len)) { ++ remaining_length -= SCTP_SIZE32(param_len); ++ } else { ++ remaining_length = 0; ++ } + } + if (num_req == 0) { + /* we have no response free the stuff */ |