PublicDateAtUSN: 2019-08-13
Candidate: CVE-2017-18509
PublicDate: 2019-08-13 14:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18509
 https://git.kernel.org/linus/99253eb750fda6a644d5188fb26c43bad8d5a745
 https://pulsesecurity.co.nz/advisories/linux-kernel-4.9-inetcsklistenstop-gpf
 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99253eb750fda6a644d5188fb26c43bad8d5a745
 https://github.com/torvalds/linux/commit/99253eb750fda6a644d5188fb26c43bad8d5a745
 https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
 https://lists.openwall.net/netdev/2017/12/04/40
 https://salsa.debian.org/kernel-team/linux/commit/baefcdc2f29923e7325ce4e1a72c3ff0a9800f32
 https://www.debian.org/security/2019/dsa-4497
 https://ubuntu.com/security/notices/USN-4145-1
Description:
 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.
Ubuntu-Description:
 It was discovered that the IPv6 implementation in the Linux kernel did not
 properly validate socket options in some situations. A local attacker could
 use this to cause a denial of service (system crash) or possibly execute
 arbitrary code.
Notes:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H [7.8 HIGH]
 nvd: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H [7.8 HIGH]

Patches_linux:
 break-fix: d1db275dd3f6e4182c4c4b4a1ac6287925d60569 99253eb750fda6a644d5188fb26c43bad8d5a745
upstream_linux: released (4.11~rc1)
precise/esm_linux: ignored (was needed ESM criteria)
trusty_linux: ignored (out of standard support)
trusty/esm_linux: ignored (was needed ESM criteria)
xenial_linux: released (4.4.0-165.193)
esm-infra/xenial_linux: released (4.4.0-165.193)
bionic_linux: not-affected (4.13.0-16.19)
disco_linux: not-affected (4.18.0-10.11)
devel_linux: not-affected (5.0.0-13.14)

Patches_linux-hwe:
upstream_linux-hwe: released (4.11~rc1)
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: released (4.13.0-26.29~16.04.2)
esm-infra/xenial_linux-hwe: released (4.13.0-26.29~16.04.2)
bionic_linux-hwe: not-affected (4.18.0-13.14~18.04.1)
disco_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (4.11~rc1)
precise/esm_linux-hwe-edge: DNE
trusty_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
xenial_linux-hwe-edge: released (4.13.0-26.29~16.04.2)
esm-infra/xenial_linux-hwe-edge: released (4.13.0-26.29~16.04.2)
bionic_linux-hwe-edge: not-affected (5.0.0-15.16~18.04.1)
disco_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (4.11~rc1)
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: ignored (out of standard support)
trusty/esm_linux-lts-xenial: ignored (was needed ESM criteria)
xenial_linux-lts-xenial: DNE
bionic_linux-lts-xenial: DNE
disco_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (4.11~rc1)
precise/esm_linux-lts-trusty: ignored (was needed ESM criteria)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_linux-lts-trusty: DNE
disco_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-oem:
upstream_linux-oem: released (4.11~rc1)
precise/esm_linux-oem: DNE
trusty_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: ignored (was needs-triage now end-of-life)
bionic_linux-oem: not-affected (4.15.0-1002.3)
disco_linux-oem: not-affected (4.15.0-1021.24)
devel_linux-oem: not-affected (4.15.0-1035.40)

Patches_linux-kvm:
upstream_linux-kvm: released (4.11~rc1)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: released (4.4.0-1059.66)
esm-infra/xenial_linux-kvm: released (4.4.0-1059.66)
bionic_linux-kvm: not-affected (4.15.0-1002.2)
disco_linux-kvm: not-affected (4.18.0-1003.3)
devel_linux-kvm: not-affected (5.0.0-1004.4)

Patches_linux-aws:
upstream_linux-aws: released (4.11~rc1)
precise/esm_linux-aws: DNE
trusty_linux-aws: ignored (out of standard support)
trusty/esm_linux-aws: ignored (was needed ESM criteria)
xenial_linux-aws: released (4.4.0-1095.106)
esm-infra/xenial_linux-aws: released (4.4.0-1095.106)
bionic_linux-aws: not-affected (4.15.0-1001.1)
disco_linux-aws: not-affected (4.18.0-1002.3)
devel_linux-aws: not-affected (5.0.0-1004.4)

Patches_linux-aws-hwe:
upstream_linux-aws-hwe: released (4.11~rc1)
precise/esm_linux-aws-hwe: DNE
trusty_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: not-affected (4.15.0-1030.31~16.04.1)
esm-infra/xenial_linux-aws-hwe: not-affected (4.15.0-1030.31~16.04.1)
bionic_linux-aws-hwe: DNE
disco_linux-aws-hwe: DNE
devel_linux-aws-hwe: DNE

Patches_linux-azure:
upstream_linux-azure: released (4.11~rc1)
precise/esm_linux-azure: DNE
trusty_linux-azure: ignored (out of standard support)
trusty/esm_linux-azure: not-affected (4.15.0-1023.24~14.04.1)
xenial_linux-azure: not-affected (4.11.0-1009.9)
esm-infra/xenial_linux-azure: not-affected (4.11.0-1009.9)
bionic_linux-azure: not-affected (4.15.0-1002.2)
disco_linux-azure: not-affected (4.18.0-1003.3)
devel_linux-azure: not-affected (5.0.0-1004.4)

Patches_linux-azure-edge:
upstream_linux-azure-edge: released (4.11~rc1)
precise/esm_linux-azure-edge: DNE
trusty_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: not-affected (4.11.0-1009.9)
bionic_linux-azure-edge: not-affected (4.15.0-1002.2)
disco_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (4.11~rc1)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: released (4.13.0-1002.5)
esm-infra/xenial_linux-gcp: released (4.13.0-1002.5)
bionic_linux-gcp: not-affected (4.15.0-1001.1)
disco_linux-gcp: not-affected (4.18.0-1002.3)
devel_linux-gcp: not-affected (5.0.0-1004.4)

Patches_linux-gcp-edge:
upstream_linux-gcp-edge: released (4.11~rc1)
precise/esm_linux-gcp-edge: DNE
trusty_linux-gcp-edge: DNE
trusty/esm_linux-gcp-edge: DNE
xenial_linux-gcp-edge: DNE
bionic_linux-gcp-edge: not-affected (4.15.0-1001.1)
disco_linux-gcp-edge: DNE
devel_linux-gcp-edge: DNE

Patches_linux-gke-4.15:
upstream_linux-gke-4.15: released (4.11~rc1)
precise/esm_linux-gke-4.15: DNE
trusty_linux-gke-4.15: DNE
trusty/esm_linux-gke-4.15: DNE
xenial_linux-gke-4.15: DNE
bionic_linux-gke-4.15: not-affected (4.15.0-1030.32)
disco_linux-gke-4.15: DNE
devel_linux-gke-4.15: DNE

Patches_linux-gke-5.0:
upstream_linux-gke-5.0: released (4.11~rc1)
precise/esm_linux-gke-5.0: DNE
trusty_linux-gke-5.0: DNE
trusty/esm_linux-gke-5.0: DNE
xenial_linux-gke-5.0: DNE
bionic_linux-gke-5.0: not-affected (5.0.0-1011.11~18.04.1)
disco_linux-gke-5.0: DNE
devel_linux-gke-5.0: DNE

Patches_linux-oracle:
upstream_linux-oracle: released (4.11~rc1)
precise/esm_linux-oracle: DNE
trusty_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: not-affected (4.15.0-1007.9~16.04.1)
esm-infra/xenial_linux-oracle: not-affected (4.15.0-1007.9~16.04.1)
bionic_linux-oracle: not-affected (4.15.0-1007.9)
disco_linux-oracle: not-affected (4.15.0-1007.9)
devel_linux-oracle: not-affected (4.15.0-1011.13)

Patches_linux-raspi2:
upstream_linux-raspi2: released (4.11~rc1)
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: released (4.4.0-1123.132)
bionic_linux-raspi2: not-affected (4.13.0-1005.5)
disco_linux-raspi2: not-affected (4.18.0-1005.7)
devel_linux-raspi2: not-affected (5.0.0-1006.6)

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (4.11~rc1)
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: released (4.4.0-1127.135)
bionic_linux-snapdragon: released (4.15.0-1053.57)
disco_linux-snapdragon: not-affected (5.0.0-1010.10)
devel_linux-snapdragon: not-affected (5.0.0-1010.10)