{"id":"USN-4709-1","summary":"linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities","details":"It was discovered that the LIO SCSI target implementation in the Linux\nkernel performed insufficient identifier checking in certain XCOPY\nrequests. An attacker with access to at least one LUN in a multiple\nbackstore environment could use this to expose sensitive information or\nmodify data. (CVE-2020-28374)\n\nWen Xu discovered that the XFS filesystem implementation in the Linux\nkernel did not properly track inode validations. An attacker could use this\nto construct a malicious XFS image that, when mounted, could cause a denial\nof service (system crash). (CVE-2018-13093)\n\nIt was discovered that the btrfs file system implementation in the Linux\nkernel did not properly validate file system metadata in some situations.\nAn attacker could use this to construct a malicious btrfs image that, when\nmounted, could cause a denial of service (system crash). (CVE-2019-19813,\nCVE-2019-19816)\n\nBodong Zhao discovered a use-after-free in the Sun keyboard driver\nimplementation in the Linux kernel. A local attacker could use this to\ncause a denial of service or possibly execute arbitrary code.\n(CVE-2020-25669)\n","modified":"2026-02-10T04:42:02Z","published":"2021-02-02T07:23:12Z","related":["UBUNTU-CVE-2018-13093","UBUNTU-CVE-2019-19813","UBUNTU-CVE-2019-19816","UBUNTU-CVE-2020-25669","UBUNTU-CVE-2020-28374"],"upstream":["CVE-2018-13093","CVE-2019-19813","CVE-2019-19816","CVE-2020-25669","CVE-2020-28374","UBUNTU-CVE-2018-13093","UBUNTU-CVE-2019-19813","UBUNTU-CVE-2019-19816","UBUNTU-CVE-2020-25669","UBUNTU-CVE-2020-28374"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4709-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-13093"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19813"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19816"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25669"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-28374"}],"affected":[{"package":{"name":"linux-aws","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/linux-aws@4.4.0-1085.89?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1085.89"}]}],"versions":["4.4.0-1002.2","4.4.0-1003.3","4.4.0-1005.5","4.4.0-1006.6","4.4.0-1009.9","4.4.0-1010.10","4.4.0-1011.11","4.4.0-1012.12","4.4.0-1014.14","4.4.0-1016.16","4.4.0-1017.17","4.4.0-1019.19","4.4.0-1022.22","4.4.0-1023.23","4.4.0-1024.25","4.4.0-1025.26","4.4.0-1027.30","4.4.0-1028.31","4.4.0-1029.32","4.4.0-1031.34","4.4.0-1032.35","4.4.0-1034.37","4.4.0-1036.39","4.4.0-1037.40","4.4.0-1038.41","4.4.0-1039.42","4.4.0-1040.43","4.4.0-1042.45","4.4.0-1044.47","4.4.0-1045.48","4.4.0-1046.50","4.4.0-1048.52","4.4.0-1050.54","4.4.0-1052.56","4.4.0-1054.58","4.4.0-1055.59","4.4.0-1056.60","4.4.0-1058.62","4.4.0-1059.63","4.4.0-1060.64","4.4.0-1061.65","4.4.0-1062.66","4.4.0-1064.68","4.4.0-1065.69","4.4.0-1066.70","4.4.0-1067.71","4.4.0-1073.77","4.4.0-1074.78","4.4.0-1075.79","4.4.0-1076.80","4.4.0-1077.81","4.4.0-1078.82","4.4.0-1081.85","4.4.0-1082.86","4.4.0-1083.87"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"linux-aws-cloud-tools-4.4.0-1085","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-aws-headers-4.4.0-1085","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-aws-tools-4.4.0-1085","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-buildinfo-4.4.0-1085-aws","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-cloud-tools-4.4.0-1085-aws","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-headers-4.4.0-1085-aws","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-image-4.4.0-1085-aws","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-modules-4.4.0-1085-aws","binary_version":"4.4.0-1085.89"},{"binary_name":"linux-tools-4.4.0-1085-aws","binary_version":"4.4.0-1085.89"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4709-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2018-13093"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-19813"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-19816"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2020-25669"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2020-28374"}],"ecosystem":"Ubuntu:Pro:14.04:LTS"}}},{"package":{"name":"linux-aws","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/linux-aws@4.4.0-1121.135?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1121.135"}]}],"versions":["4.4.0-1001.10","4.4.0-1003.12","4.4.0-1004.13","4.4.0-1007.16","4.4.0-1009.18","4.4.0-1011.20","4.4.0-1012.21","4.4.0-1013.22","4.4.0-1016.25","4.4.0-1017.26","4.4.0-1018.27","4.4.0-1020.29","4.4.0-1022.31","4.4.0-1026.35","4.4.0-1028.37","4.4.0-1030.39","4.4.0-1031.40","4.4.0-1032.41","4.4.0-1035.44","4.4.0-1037.46","4.4.0-1038.47","4.4.0-1039.48","4.4.0-1041.50","4.4.0-1043.52","4.4.0-1044.53","4.4.0-1047.56","4.4.0-1048.57","4.4.0-1049.58","4.4.0-1050.59","4.4.0-1052.61","4.4.0-1054.63","4.4.0-1055.64","4.4.0-1057.66","4.4.0-1060.69","4.4.0-1061.70","4.4.0-1062.71","4.4.0-1063.72","4.4.0-1065.75","4.4.0-1066.76","4.4.0-1067.77","4.4.0-1069.79","4.4.0-1070.80","4.4.0-1072.82","4.4.0-1073.83","4.4.0-1074.84","4.4.0-1075.85","4.4.0-1077.87","4.4.0-1079.89","4.4.0-1081.91","4.4.0-1083.93","4.4.0-1084.94","4.4.0-1085.96","4.4.0-1087.98","4.4.0-1088.99","4.4.0-1090.101","4.4.0-1092.103","4.4.0-1094.105","4.4.0-1095.106","4.4.0-1096.107","4.4.0-1098.109","4.4.0-1099.110","4.4.0-1100.111","4.4.0-1101.112","4.4.0-1102.113","4.4.0-1104.115","4.4.0-1105.116","4.4.0-1106.117","4.4.0-1107.118","4.4.0-1109.120","4.4.0-1110.121","4.4.0-1111.123","4.4.0-1112.124","4.4.0-1113.126","4.4.0-1114.127","4.4.0-1117.131","4.4.0-1118.132","4.4.0-1119.133"],"ecosystem_specific":{"availability":"No 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