{"id":"USN-3740-1","summary":"linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities","details":"It was discovered that memory present in the L1 data cache of an Intel CPU\ncore may be exposed to a malicious process that is executing on the CPU\ncore. This vulnerability is also known as L1 Terminal Fault (L1TF). A local\nattacker in a guest virtual machine could use this to expose sensitive\ninformation (memory from other guests or the host OS). (CVE-2018-3646)\n\nIt was discovered that memory present in the L1 data cache of an Intel CPU\ncore may be exposed to a malicious process that is executing on the CPU\ncore. This vulnerability is also known as L1 Terminal Fault (L1TF). A local\nattacker could use this to expose sensitive information (memory from the\nkernel or other processes). (CVE-2018-3620)\n\nJuha-Matti Tilli discovered that the IP implementation in the Linux kernel\nperformed algorithmically expensive operations in some situations when\nhandling incoming packet fragments. A remote attacker could use this to\ncause a denial of service. (CVE-2018-5391)\n","modified":"2026-02-10T04:41:23Z","published":"2018-08-14T21:47:54Z","related":["UBUNTU-CVE-2018-3620","UBUNTU-CVE-2018-3646","UBUNTU-CVE-2018-5391"],"upstream":["CVE-2018-3620","CVE-2018-3646","CVE-2018-5391","UBUNTU-CVE-2018-3620","UBUNTU-CVE-2018-3646","UBUNTU-CVE-2018-5391"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3740-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-3620"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-3646"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-5391"}],"affected":[{"package":{"name":"linux","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/linux@4.15.0-32.35?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-32.35"}]}],"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"],"ecosystem_specific":{"availability":"No 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