PublicDateAtUSN: 2019-01-03 Candidate: CVE-2019-3701 PublicDate: 2019-01-03 16:29:00 UTC References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3701 https://marc.info/?l=linux-netdev&m=154659326324991&w=2 https://marc.info/?l=linux-can&m=154659326224990&w=2 https://ubuntu.com/security/notices/USN-3932-1 https://ubuntu.com/security/notices/USN-3932-2 https://ubuntu.com/security/notices/USN-4115-1 https://ubuntu.com/security/notices/USN-4118-1 Description: An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames. Ubuntu-Description: Muyu Yu discovered that the CAN implementation in the Linux kernel in some situations did not properly restrict the field size when processing outgoing frames. A local attacker with CAP_NET_ADMIN privileges could use this to execute arbitrary code. Notes: tyhicks> The original CVE description that states that an unprivileged user can trigger a system crash is incorrect. Only the root user, from the init namespace, can trigger the system crash. Therefore, we'll prioritize this issue as negligible. Bugs: https://bugzilla.suse.com/show_bug.cgi?id=1120386 Priority: negligible Discovered-by: Muyu Yu Assigned-to: CVSS: nvd: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H [4.4 MEDIUM] Patches_linux: break-fix: c1aabdf379bc2feeb0df7057ed5bad96f492133e 0aaa81377c5a01f686bcdb8c7a6929a7bf330c68 upstream_linux: released (5.0~rc3) precise/esm_linux: ignored (was needs-triage ESM criteria) trusty_linux: ignored (reached end-of-life) trusty/esm_linux: ignored (was needed ESM criteria) xenial_linux: released (4.4.0-145.171) esm-infra/xenial_linux: released (4.4.0-145.171) bionic_linux: released (4.15.0-60.67) cosmic_linux: ignored (reached end-of-life) disco_linux: not-affected (4.19.0-12.13) eoan_linux: not-affected (5.0.0-13.14) devel_linux: not-affected (5.4.0-9.12) Patches_linux-lts-trusty: upstream_linux-lts-trusty: released (5.0~rc3) precise/esm_linux-lts-trusty: ignored (was needs-triage ESM criteria) trusty_linux-lts-trusty: DNE trusty/esm_linux-lts-trusty: DNE xenial_linux-lts-trusty: DNE bionic_linux-lts-trusty: DNE cosmic_linux-lts-trusty: DNE disco_linux-lts-trusty: DNE eoan_linux-lts-trusty: DNE devel_linux-lts-trusty: DNE Patches_linux-goldfish: upstream_linux-goldfish: released (5.0~rc3) precise/esm_linux-goldfish: DNE trusty_linux-goldfish: ignored (abandoned) trusty/esm_linux-goldfish: DNE (trusty was ignored [abandoned]) xenial_linux-goldfish: ignored (end-of-life) bionic_linux-goldfish: DNE cosmic_linux-goldfish: DNE disco_linux-goldfish: DNE eoan_linux-goldfish: DNE devel_linux-goldfish: DNE Patches_linux-grouper: upstream_linux-grouper: released (5.0~rc3) precise/esm_linux-grouper: DNE trusty_linux-grouper: ignored (abandoned) trusty/esm_linux-grouper: DNE (trusty was ignored [abandoned]) xenial_linux-grouper: DNE bionic_linux-grouper: DNE cosmic_linux-grouper: DNE disco_linux-grouper: DNE eoan_linux-grouper: DNE devel_linux-grouper: DNE Patches_linux-maguro: upstream_linux-maguro: released (5.0~rc3) precise/esm_linux-maguro: DNE trusty_linux-maguro: ignored (abandoned) trusty/esm_linux-maguro: DNE (trusty was ignored [abandoned]) xenial_linux-maguro: DNE bionic_linux-maguro: DNE cosmic_linux-maguro: DNE disco_linux-maguro: DNE eoan_linux-maguro: DNE devel_linux-maguro: DNE Patches_linux-mako: upstream_linux-mako: released (5.0~rc3) precise/esm_linux-mako: DNE trusty_linux-mako: ignored (abandoned) trusty/esm_linux-mako: DNE (trusty was ignored [abandoned]) xenial_linux-mako: ignored (abandoned) bionic_linux-mako: DNE cosmic_linux-mako: DNE disco_linux-mako: DNE eoan_linux-mako: DNE devel_linux-mako: DNE Patches_linux-manta: upstream_linux-manta: released (5.0~rc3) precise/esm_linux-manta: DNE trusty_linux-manta: ignored (abandoned) trusty/esm_linux-manta: DNE (trusty was ignored [abandoned]) xenial_linux-manta: DNE bionic_linux-manta: DNE cosmic_linux-manta: DNE disco_linux-manta: DNE eoan_linux-manta: DNE devel_linux-manta: DNE Patches_linux-flo: upstream_linux-flo: released (5.0~rc3) precise/esm_linux-flo: DNE trusty_linux-flo: ignored (abandoned) trusty/esm_linux-flo: DNE (trusty was ignored [abandoned]) xenial_linux-flo: ignored (abandoned) bionic_linux-flo: DNE cosmic_linux-flo: DNE disco_linux-flo: DNE eoan_linux-flo: DNE devel_linux-flo: DNE Patches_linux-raspi2: upstream_linux-raspi2: released (5.0~rc3) precise/esm_linux-raspi2: DNE trusty_linux-raspi2: DNE trusty/esm_linux-raspi2: DNE xenial_linux-raspi2: released (4.4.0-1106.114) bionic_linux-raspi2: released (4.15.0-1044.47) cosmic_linux-raspi2: ignored (reached end-of-life) disco_linux-raspi2: not-affected (5.0.0-1004.4) eoan_linux-raspi2: not-affected (5.0.0-1006.6) devel_linux-raspi2: not-affected (5.4.0-1004.4) Patches_linux-lts-utopic: upstream_linux-lts-utopic: released (5.0~rc3) precise/esm_linux-lts-utopic: DNE trusty_linux-lts-utopic: ignored (out of standard support) trusty/esm_linux-lts-utopic: DNE (trusty was ignored [end-of-life]) xenial_linux-lts-utopic: DNE bionic_linux-lts-utopic: DNE cosmic_linux-lts-utopic: DNE disco_linux-lts-utopic: DNE eoan_linux-lts-utopic: DNE devel_linux-lts-utopic: DNE Patches_linux-lts-vivid: upstream_linux-lts-vivid: released (5.0~rc3) precise/esm_linux-lts-vivid: DNE trusty_linux-lts-vivid: ignored (out of standard support) trusty/esm_linux-lts-vivid: DNE (trusty was ignored [end-of-life]) xenial_linux-lts-vivid: DNE bionic_linux-lts-vivid: DNE cosmic_linux-lts-vivid: DNE disco_linux-lts-vivid: DNE eoan_linux-lts-vivid: DNE devel_linux-lts-vivid: DNE Patches_linux-lts-wily: upstream_linux-lts-wily: released (5.0~rc3) precise/esm_linux-lts-wily: DNE trusty_linux-lts-wily: ignored (out of standard support) trusty/esm_linux-lts-wily: DNE (trusty was ignored [end-of-life]) xenial_linux-lts-wily: DNE bionic_linux-lts-wily: DNE cosmic_linux-lts-wily: DNE disco_linux-lts-wily: DNE eoan_linux-lts-wily: DNE devel_linux-lts-wily: DNE Patches_linux-lts-xenial: upstream_linux-lts-xenial: released (5.0~rc3) precise/esm_linux-lts-xenial: DNE trusty_linux-lts-xenial: released (4.4.0-144.170~14.04.1) trusty/esm_linux-lts-xenial: released (4.4.0-144.170~14.04.1) xenial_linux-lts-xenial: DNE bionic_linux-lts-xenial: DNE cosmic_linux-lts-xenial: DNE disco_linux-lts-xenial: DNE eoan_linux-lts-xenial: DNE devel_linux-lts-xenial: DNE Patches_linux-snapdragon: upstream_linux-snapdragon: released (5.0~rc3) precise/esm_linux-snapdragon: DNE trusty_linux-snapdragon: DNE trusty/esm_linux-snapdragon: DNE xenial_linux-snapdragon: released (4.4.0-1110.115) bionic_linux-snapdragon: released (4.15.0-1062.69) cosmic_linux-snapdragon: DNE disco_linux-snapdragon: not-affected (5.0.0-1010.10) eoan_linux-snapdragon: DNE devel_linux-snapdragon: DNE Patches_linux-aws: upstream_linux-aws: released (5.0~rc3) precise/esm_linux-aws: DNE trusty_linux-aws: released (4.4.0-1040.43) trusty/esm_linux-aws: released (4.4.0-1040.43) xenial_linux-aws: released (4.4.0-1079.89) esm-infra/xenial_linux-aws: released (4.4.0-1079.89) bionic_linux-aws: released (4.15.0-1047.49) cosmic_linux-aws: ignored (reached end-of-life) disco_linux-aws: not-affected (5.0.0-1001.1) eoan_linux-aws: not-affected (5.0.0-1004.4) devel_linux-aws: not-affected (5.4.0-1004.4) Patches_linux-hwe: upstream_linux-hwe: released (5.0~rc3) precise/esm_linux-hwe: DNE trusty_linux-hwe: DNE trusty/esm_linux-hwe: DNE xenial_linux-hwe: released (4.15.0-60.67~16.04.1) esm-infra/xenial_linux-hwe: released (4.15.0-60.67~16.04.1) bionic_linux-hwe: released (5.0.0-23.24~18.04.1) cosmic_linux-hwe: DNE disco_linux-hwe: DNE eoan_linux-hwe: DNE devel_linux-hwe: DNE Patches_linux-hwe-edge: upstream_linux-hwe-edge: released (5.0~rc3) precise/esm_linux-hwe-edge: DNE trusty_linux-hwe-edge: DNE trusty/esm_linux-hwe-edge: DNE xenial_linux-hwe-edge: released (4.15.0-60.67~16.04.1) esm-infra/xenial_linux-hwe-edge: released (4.15.0-60.67~16.04.1) bionic_linux-hwe-edge: not-affected (5.0.0-15.16~18.04.1) cosmic_linux-hwe-edge: DNE disco_linux-hwe-edge: DNE eoan_linux-hwe-edge: DNE devel_linux-hwe-edge: DNE Patches_linux-gke: upstream_linux-gke: released (5.0~rc3) precise/esm_linux-gke: DNE trusty_linux-gke: DNE trusty/esm_linux-gke: DNE xenial_linux-gke: ignored (end-of-life) bionic_linux-gke: DNE cosmic_linux-gke: DNE disco_linux-gke: DNE eoan_linux-gke: DNE devel_linux-gke: DNE Patches_linux-gke-4.15: upstream_linux-gke-4.15: released (5.0~rc3) precise/esm_linux-gke-4.15: DNE trusty/esm_linux-gke-4.15: DNE xenial_linux-gke-4.15: DNE bionic_linux-gke-4.15: released (4.15.0-1041.43) disco_linux-gke-4.15: DNE eoan_linux-gke-4.15: DNE devel_linux-gke-4.15: DNE Patches_linux-gke-5.0: upstream_linux-gke-5.0: released (5.0~rc3) precise/esm_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 eoan_linux-gke-5.0: DNE devel_linux-gke-5.0: DNE Patches_linux-azure: upstream_linux-azure: released (5.0~rc3) precise/esm_linux-azure: DNE trusty_linux-azure: ignored (reached end-of-life) trusty/esm_linux-azure: ignored (was needed ESM criteria) xenial_linux-azure: released (4.15.0-1056.61) esm-infra/xenial_linux-azure: released (4.15.0-1056.61) bionic_linux-azure: released (5.0.0-1014.14~18.04.1) cosmic_linux-azure: ignored (reached end-of-life) disco_linux-azure: not-affected (5.0.0-1001.1) eoan_linux-azure: not-affected (5.0.0-1004.4) devel_linux-azure: not-affected (5.4.0-1005.5) Patches_linux-azure-edge: upstream_linux-azure-edge: released (5.0~rc3) precise/esm_linux-azure-edge: DNE trusty_linux-azure-edge: DNE trusty/esm_linux-azure-edge: DNE xenial_linux-azure-edge: released (4.15.0-1056.61) bionic_linux-azure-edge: released (5.0.0-1014.14~18.04.1) cosmic_linux-azure-edge: DNE disco_linux-azure-edge: DNE eoan_linux-azure-edge: DNE devel_linux-azure-edge: DNE Patches_linux-gcp: upstream_linux-gcp: released (5.0~rc3) precise/esm_linux-gcp: DNE trusty_linux-gcp: DNE trusty/esm_linux-gcp: DNE xenial_linux-gcp: released (4.15.0-1041.43) esm-infra/xenial_linux-gcp: released (4.15.0-1041.43) bionic_linux-gcp: released (4.15.0-1042.45) cosmic_linux-gcp: ignored (reached end-of-life) disco_linux-gcp: not-affected (5.0.0-1001.1) eoan_linux-gcp: not-affected (5.0.0-1004.4) devel_linux-gcp: not-affected (5.4.0-1002.2) Patches_linux-kvm: upstream_linux-kvm: released (5.0~rc3) precise/esm_linux-kvm: DNE trusty_linux-kvm: DNE trusty/esm_linux-kvm: DNE xenial_linux-kvm: released (4.4.0-1043.49) esm-infra/xenial_linux-kvm: released (4.4.0-1043.49) bionic_linux-kvm: released (4.15.0-1043.43) cosmic_linux-kvm: ignored (reached end-of-life) disco_linux-kvm: not-affected (5.0.0-1001.1) eoan_linux-kvm: not-affected (5.0.0-1004.4) devel_linux-kvm: not-affected (5.4.0-1003.3) Patches_linux-euclid: upstream_linux-euclid: released (5.0~rc3) precise/esm_linux-euclid: DNE trusty_linux-euclid: DNE trusty/esm_linux-euclid: DNE xenial_linux-euclid: ignored (was needs-triage ESM criteria) bionic_linux-euclid: DNE cosmic_linux-euclid: DNE disco_linux-euclid: DNE eoan_linux-euclid: DNE devel_linux-euclid: DNE Patches_linux-oem: upstream_linux-oem: released (5.0~rc3) 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: released (4.15.0-1056.65) cosmic_linux-oem: ignored (reached end-of-life) disco_linux-oem: ignored (was pending \[4.15.0-1056.65\] now end-of-life) eoan_linux-oem: released (4.15.0-1059.68) devel_linux-oem: DNE Patches_linux-gcp-edge: upstream_linux-gcp-edge: released (5.0~rc3) 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: released (4.15.0-1042.45) cosmic_linux-gcp-edge: DNE disco_linux-gcp-edge: DNE eoan_linux-gcp-edge: DNE devel_linux-gcp-edge: DNE Patches_linux-aws-hwe: upstream_linux-aws-hwe: released (5.0~rc3) precise/esm_linux-aws-hwe: DNE trusty_linux-aws-hwe: DNE trusty/esm_linux-aws-hwe: DNE xenial_linux-aws-hwe: released (4.15.0-1047.49~16.04.1) esm-infra/xenial_linux-aws-hwe: released (4.15.0-1047.49~16.04.1) bionic_linux-aws-hwe: DNE cosmic_linux-aws-hwe: DNE disco_linux-aws-hwe: DNE eoan_linux-aws-hwe: DNE devel_linux-aws-hwe: DNE Patches_linux-oracle: upstream_linux-oracle: released (5.0~rc3) precise/esm_linux-oracle: DNE trusty_linux-oracle: DNE trusty/esm_linux-oracle: DNE xenial_linux-oracle: released (4.15.0-1022.25~16.04.1) esm-infra/xenial_linux-oracle: released (4.15.0-1022.25~16.04.1) bionic_linux-oracle: released (4.15.0-1022.25) cosmic_linux-oracle: ignored (reached end-of-life) disco_linux-oracle: released (5.0.0-1004.8) eoan_linux-oracle: not-affected (5.3.0-1002.2) devel_linux-oracle: not-affected (5.4.0-1003.3) Patches_linux-oem-osp1: upstream_linux-oem-osp1: released (5.0~rc3) precise/esm_linux-oem-osp1: DNE trusty_linux-oem-osp1: DNE trusty/esm_linux-oem-osp1: DNE xenial_linux-oem-osp1: DNE bionic_linux-oem-osp1: not-affected (5.0.0-1010.11) disco_linux-oem-osp1: not-affected (5.0.0-1010.11) eoan_linux-oem-osp1: not-affected (5.0.0-1010.11) devel_linux-oem-osp1: DNE Patches_linux-aws-5.0: upstream_linux-aws-5.0: released (5.0~rc3) precise/esm_linux-aws-5.0: DNE trusty_linux-aws-5.0: DNE trusty/esm_linux-aws-5.0: DNE xenial_linux-aws-5.0: DNE bionic_linux-aws-5.0: not-affected (5.0.0-1021.24~18.04.1) disco_linux-aws-5.0: DNE eoan_linux-aws-5.0: DNE devel_linux-aws-5.0: DNE Patches_linux-azure-5.3: upstream_linux-azure-5.3: released (5.0~rc3) precise/esm_linux-azure-5.3: DNE trusty_linux-azure-5.3: DNE trusty/esm_linux-azure-5.3: DNE xenial_linux-azure-5.3: DNE bionic_linux-azure-5.3: not-affected (5.3.0-1007.8~18.04.1) disco_linux-azure-5.3: DNE eoan_linux-azure-5.3: DNE devel_linux-azure-5.3: DNE Patches_linux-gcp-5.3: upstream_linux-gcp-5.3: released (5.0~rc3) precise/esm_linux-gcp-5.3: DNE trusty_linux-gcp-5.3: DNE trusty/esm_linux-gcp-5.3: DNE xenial_linux-gcp-5.3: DNE bionic_linux-gcp-5.3: not-affected (5.3.0-1008.9~18.04.1) disco_linux-gcp-5.3: DNE eoan_linux-gcp-5.3: DNE devel_linux-gcp-5.3: DNE Patches_linux-oracle-5.0: upstream_linux-oracle-5.0: released (5.0~rc3) precise/esm_linux-oracle-5.0: DNE trusty_linux-oracle-5.0: DNE trusty/esm_linux-oracle-5.0: DNE xenial_linux-oracle-5.0: DNE bionic_linux-oracle-5.0: not-affected (5.0.0-1007.12~18.04.1) disco_linux-oracle-5.0: DNE eoan_linux-oracle-5.0: DNE devel_linux-oracle-5.0: DNE Patches_linux-raspi2-5.3: upstream_linux-raspi2-5.3: released (5.0~rc3) precise/esm_linux-raspi2-5.3: DNE trusty_linux-raspi2-5.3: DNE trusty/esm_linux-raspi2-5.3: DNE xenial_linux-raspi2-5.3: DNE bionic_linux-raspi2-5.3: not-affected (5.3.0-1017.19~18.04.1) eoan_linux-raspi2-5.3: DNE devel_linux-raspi2-5.3: DNE Patches_linux-oem-5.4: upstream_linux-oem-5.4: released (5.0~rc3) precise/esm_linux-oem-5.4: DNE trusty_linux-oem-5.4: DNE trusty/esm_linux-oem-5.4: DNE xenial_linux-oem-5.4: DNE bionic_linux-oem-5.4: DNE eoan_linux-oem-5.4: DNE devel_linux-oem-5.4: not-affected (5.4.0-1002.4)