In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
4.4.0-197.2294.4.0-1118.1324.15.0-1088.93~16.04.14.15.0-1100.111~16.04.14.15.0-1088.101~16.04.14.15.0-126.129~16.04.14.10.0-14.16~16.04.14.10.0-19.21~16.04.14.10.0-20.22~16.04.14.10.0-21.23~16.04.14.10.0-22.24~16.04.14.10.0-24.28~16.04.14.10.0-26.30~16.04.14.11.0-13.19~16.04.14.11.0-14.20~16.04.14.13.0-16.19~16.04.3+13 more4.4.0-1084.934.15.0-1059.65~16.04.14.4.0-1142.152Exploitability
AV:LAC:LPR:HUI:NScope
S:UImpact
C:NI:HA:HCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H