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CVE-2017-18509 PUBLISHED

An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187.

EPSS 0.07% · 21.8th percentile

Risk Scores

EPSS Score
0.07%
21.8th percentile

Affected Products

VendorProductVersions
Ubuntu:16.04:LTSlinux-kvm0, 4.4.0-1058.65, 4.4.0-1056.63
Ubuntu:16.04:LTSlinux-raspi24.4.0-1122.131, 0, 4.2.0-1013.19
Ubuntu:20.04:LTSlinux-raspi25.4.0-1004.4, 5.3.0-1007.8, 5.4.0-1006.6
Ubuntu:22.04:LTSlinux-riscv5.15.0-1019.22, 5.15.0-1018.21, 5.15.0-1017.19
Ubuntu:Pro:FIPS:16.04:LTSlinux-fips4.4.0-1011.14, 4.4.0-1021.26, 4.4.0-1019.24
Ubuntu:16.04:LTSlinux-hwe4.10.0-37.41~16.04.1, 4.10.0-35.39~16.04.1, 4.10.0-33.37~16.04.1
Ubuntu:Pro:14.04:LTSlinux3.13.0-205.256, 3.13.0-207.258, 3.13.0-208.259
Ubuntu:22.04:LTSlinux-realtime5.15.0-1032.35, 0
Ubuntu:20.04:LTSlinux-azure-fde5.4.0-1063.66+cvm3.2, 5.4.0-1064.67+cvm1.1, 5.4.0-1065.68+cvm2.1
Ubuntu:22.04:LTSlinux-intel-iot-realtime0, 5.15.0-1073.75
Ubuntu:16.04:LTSlinux-snapdragon4.4.0-1035.39, 4.4.0-1032.36, 4.4.0-1030.33
Ubuntu:24.04:LTSlinux-raspi-realtime6.8.0-2019.20, 0
Ubuntu:Pro:14.04:LTSlinux-lts-xenial4.4.0-143.169~14.04.2, 0, 4.4.0-13.29~14.04.1
Ubuntu:16.04:LTSlinux-gcp4.10.0-1009.9, 4.10.0-1008.8, 4.10.0-1007.7
Ubuntu:18.04:LTSlinux-snapdragon0, 4.4.0-1081.86, 4.4.0-1079.84
Ubuntu:20.04:LTSlinux-riscv5.4.0-33.37, 5.4.0-31.35, 5.4.0-30.34
Ubuntu:16.04:LTSlinux4.4.0-159.187, 4.4.0-164.192, 4.4.0-161.189
Ubuntu:Pro:14.04:LTSlinux-aws4.4.0-1014.14, 4.4.0-1046.50, 4.4.0-1048.52
Ubuntu:20.04:LTSlinux-gke5.4.0-1067.70, 0, 5.4.0-1033.35
Ubuntu:16.04:LTSlinux-aws4.4.0-1083.93, 4.4.0-1066.76, 4.4.0-1081.91

Timeline

References

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