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authorPaul Jakma <paul.jakma@sun.com>2007-12-22 16:49:52 +0000
committerPaul Jakma <paul.jakma@sun.com>2007-12-22 16:49:52 +0000
commit370b64a2ad38e43b4bed028960481bbf4192becd (patch)
treeebecb7f934a7058d582e52b5c64a21eb676ec994 /tests/heavy-thread.c
parenta7f93f3e060fdb2dc7bf5ff4ed4563d4b689bc6c (diff)
[bgpd] Fix number of DoS security issues, restricted to configured peers.
2007-12-22 Paul Jakma <paul.jakma@sun.com> * Fix series of vulnerabilities reported by "Mu Security Research Team", where bgpd can be made to crash by sending malformed packets - requires that bgpd be configured with a session to the peer. * bgp_attr.c: (bgp_attr_as4_path) aspath_parse may fail, only set the attribute flag indicating AS4_PATH if we actually managed to parse one. (bgp_attr_munge_as4_attrs) Assert was too general, it is possible to receive AS4_AGGREGATOR before AGGREGATOR. (bgp_attr_parse) Check that we have actually received the extra byte of header for Extended-Length attributes. * bgp_attr.h: Fix BGP_ATTR_MIN_LEN to account for the length byte. * bgp_open.c: (cap_minsizes) Fix size of CAPABILITY_CODE_RESTART, incorrect -2 left in place from a development version of as4-path patch. * bgp_packet.c: (bgp_route_refresh_receive) ORF length parameter needs to be properly sanity checked. * tests/bgp_capability_test.c: Test for empty capabilities.
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