{"id":"USN-5591-3","summary":"linux, linux-azure-4.15, linux-dell300x, linux-gcp-4.15, linux-kvm, linux-snapdragon vulnerability","details":"\nIt was discovered that the virtual terminal driver in the Linux kernel did\nnot properly handle VGA console font changes, leading to an out-of-bounds\nwrite. A local attacker could use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code.\n","modified":"2026-02-10T04:42:45Z","published":"2022-09-01T17:51:30Z","related":["UBUNTU-CVE-2021-33656"],"upstream":["CVE-2021-33656","UBUNTU-CVE-2021-33656"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5591-3"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33656"}],"affected":[{"package":{"name":"linux","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/linux@4.15.0-192.203?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-192.203"}]}],"versions":["4.13.0-16.19","4.13.0-17.20","4.13.0-25.29","4.13.0-32.35","4.15.0-10.11","4.15.0-12.13","4.15.0-13.14","4.15.0-15.16","4.15.0-19.20","4.15.0-20.21","4.15.0-22.24","4.15.0-23.25","4.15.0-24.26","4.15.0-29.31","4.15.0-30.32","4.15.0-32.35","4.15.0-33.36","4.15.0-34.37","4.15.0-36.39","4.15.0-38.41","4.15.0-39.42","4.15.0-42.45","4.15.0-43.46","4.15.0-44.47","4.15.0-45.48","4.15.0-46.49","4.15.0-47.50","4.15.0-48.51","4.15.0-50.54","4.15.0-51.55","4.15.0-52.56","4.15.0-54.58","4.15.0-55.60","4.15.0-58.64","4.15.0-60.67","4.15.0-62.69","4.15.0-64.73","4.15.0-65.74","4.15.0-66.75","4.15.0-69.78","4.15.0-70.79","4.15.0-72.81","4.15.0-74.84","4.15.0-76.86","4.15.0-88.88","4.15.0-91.92","4.15.0-96.97","4.15.0-99.100","4.15.0-101.102","4.15.0-106.107","4.15.0-108.109","4.15.0-109.110","4.15.0-111.112","4.15.0-112.113","4.15.0-115.116","4.15.0-117.118","4.15.0-118.119","4.15.0-121.123","4.15.0-122.124","4.15.0-123.126","4.15.0-124.127","4.15.0-126.129","4.15.0-128.131","4.15.0-129.132","4.15.0-130.134","4.15.0-132.136","4.15.0-134.138","4.15.0-135.139","4.15.0-136.140","4.15.0-137.141","4.15.0-139.143","4.15.0-140.144","4.15.0-141.145","4.15.0-142.146","4.15.0-143.147","4.15.0-144.148","4.15.0-147.151","4.15.0-151.157","4.15.0-153.160","4.15.0-154.161","4.15.0-156.163","4.15.0-158.166","4.15.0-159.167","4.15.0-161.169","4.15.0-162.170","4.15.0-163.171","4.15.0-166.174","4.15.0-167.175","4.15.0-169.177","4.15.0-171.180","4.15.0-173.182","4.15.0-175.184","4.15.0-176.185","4.15.0-177.186","4.15.0-180.189","4.15.0-184.194","4.15.0-187.198","4.15.0-188.199","4.15.0-189.200","4.15.0-191.202"],"ecosystem_specific":{"availability":"No 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