{"id":"USN-4342-1","summary":"linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities","details":"Al Viro discovered that the Linux kernel for s390x systems did not properly\nperform page table upgrades for kernel sections that use secondary address\nmode. A local attacker could use this to cause a denial of service (system\ncrash) or execute arbitrary code. (CVE-2020-11884)\n\nIt was discovered that the Intel Wi-Fi driver in the Linux kernel did not\nproperly check for errors in some situations. A local attacker could\npossibly use this to cause a denial of service (system crash).\n(CVE-2019-16234)\n\nTristan Madani discovered that the block I/O tracing implementation in the\nLinux kernel contained a race condition. A local attacker could use this to\ncause a denial of service (system crash) or possibly expose sensitive\ninformation. (CVE-2019-19768)\n\nIt was discovered that the vhost net driver in the Linux kernel contained a\nstack buffer overflow. A local attacker with the ability to perform ioctl()\ncalls on /dev/vhost-net could use this to cause a denial of service (system\ncrash). (CVE-2020-10942)\n\nIt was discovered that the virtual terminal implementation in the Linux\nkernel contained a race condition. A local attacker could possibly use this\nto cause a denial of service (system crash) or expose sensitive\ninformation. (CVE-2020-8648)\n\nShijie Luo discovered that the ext4 file system implementation in the Linux\nkernel did not properly check for a too-large journal size. An attacker\ncould use this to construct a malicious ext4 image that, when mounted,\ncould cause a denial of service (soft lockup). (CVE-2020-8992)\n\nJordy Zomer discovered that the floppy driver in the Linux kernel did not\nproperly check for errors in some situations. A local attacker could\npossibly use this to cause a denial of service (system crash) or possibly\nexpose sensitive information. (CVE-2020-9383)\n","modified":"2026-05-23T01:48:27.967367998Z","published":"2020-04-30T17:52:52Z","related":["UBUNTU-CVE-2019-16234","UBUNTU-CVE-2019-19768","UBUNTU-CVE-2020-10942","UBUNTU-CVE-2020-11884","UBUNTU-CVE-2020-8648","UBUNTU-CVE-2020-8992","UBUNTU-CVE-2020-9383"],"upstream":["CVE-2020-8992","UBUNTU-CVE-2020-8992"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4342-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8992"}],"affected":[{"package":{"name":"linux-azure-5.3","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-5.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.0-1020.21~18.04.1"}]}],"versions":["5.3.0-1007.8~18.04.1","5.3.0-1008.9~18.04.1","5.3.0-1009.10~18.04.1","5.3.0-1010.11~18.04.1","5.3.0-1012.13~18.04.1","5.3.0-1013.14~18.04.1","5.3.0-1016.17~18.04.1","5.3.0-1018.19~18.04.1","5.3.0-1019.20~18.04.1"],"ecosystem_specific":{"availability":"No 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