diff options
| author | Denis Ovsienko <infrastation@yandex.ru> | 2011-09-26 13:18:51 +0400 |
|---|---|---|
| committer | Denis Ovsienko <infrastation@yandex.ru> | 2011-09-26 18:40:48 +0400 |
| commit | 552563a1c443ec876edd92bf79f29ff3afe2c01e (patch) | |
| tree | c0bf1cdbf045a493f1cbb4623e85724eeea4dc7f /ospf6d/ospf6_lsa.h | |
| parent | 308687b7d73c5cacf927a3a33efbfaea627ccc09 (diff) | |
ospf6d: CVE-2011-3323 (fortify packet reception)
This vulnerability (CERT-FI #514840) was reported by CROSS project.
ospf6d processes IPv6 prefix structures in incoming packets without
verifying that the declared prefix length is valid. This leads to a
crash
caused by out of bounds memory access.
* ospf6_abr.h: new macros for size/alignment validation
* ospf6_asbr.h: idem
* ospf6_intra.h: idem
* ospf6_lsa.h: idem
* ospf6_message.h: idem
* ospf6_proto.h: idem
* ospf6_message.c
* ospf6_packet_minlen: helper array for ospf6_packet_examin()
* ospf6_lsa_minlen: helper array for ospf6_lsa_examin()
* ospf6_hello_recv(): do not call ospf6_header_examin(), let upper
layer verify the input data
* ospf6_dbdesc_recv(): idem
* ospf6_lsreq_recv(): idem
* ospf6_lsupdate_recv(): idem
* ospf6_lsack_recv(): idem
* ospf6_prefixes_examin(): new function, implements A.4.1
* ospf6_lsa_examin(): new function, implements A.4
* ospf6_lsaseq_examin(): new function, an interface to above
* ospf6_packet_examin(): new function, implements A.3
* ospf6_rxpacket_examin(): new function, replaces
ospf6_header_examin()
* ospf6_header_examin(): sayonara
* ospf6_receive(): perform passive interface check earliest possible,
employ ospf6_rxpacket_examin()
Diffstat (limited to 'ospf6d/ospf6_lsa.h')
| -rw-r--r-- | ospf6d/ospf6_lsa.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/ospf6d/ospf6_lsa.h b/ospf6d/ospf6_lsa.h index c5772768..13b89900 100644 --- a/ospf6d/ospf6_lsa.h +++ b/ospf6d/ospf6_lsa.h @@ -79,6 +79,7 @@ (ntohs (type) & OSPF6_LSTYPE_SCOPE_MASK) /* LSA Header */ +#define OSPF6_LSA_HEADER_SIZE 20U struct ospf6_lsa_header { u_int16_t age; /* LS age */ |