The IPv6 routing header parser in tcpdump before 4.9.2 has a buffer over-read in print-rt6.c:rt6_print().
{ "vanir_signatures": [ { "digest": { "line_hashes": [ "192707722051195284161584889376195263419", "221458468991469620263554047268183003623", "247800741027474284885436326737696942658", "135847807847197040153488082620276053087", "117276732660065893194407804521681065670", "302677013742355543193013432006490799068" ], "threshold": 0.9 }, "deprecated": false, "signature_version": "v1", "source": "https://github.com/the-tcpdump-group/tcpdump/commit/7ac73d6cd41e9d4ac0ca7e6830ca390e195bb21c", "signature_type": "Line", "id": "CVE-2017-12986-4d7a2901", "target": { "file": "ip6.h" } } ] }