{"id":"USN-4727-1","summary":"linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oem-5.6, linux-oracle, linux-raspi  vulnerability","details":"Alexander Popov discovered that multiple race conditions existed in the\nAF_VSOCK implementation in the Linux kernel. A local attacker could use\nthis to cause a denial of service (system crash) or execute arbitrary code.\n","modified":"2026-02-10T04:42:03Z","published":"2021-02-10T00:54:45Z","related":["UBUNTU-CVE-2021-26708"],"upstream":["CVE-2021-26708","UBUNTU-CVE-2021-26708"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4727-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-26708"}],"affected":[{"package":{"name":"linux-hwe-5.8","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-hwe-5.8@5.8.0-43.49~20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.0-43.49~20.04.1"}]}],"versions":["5.8.0-23.24~20.04.1","5.8.0-25.26~20.04.1","5.8.0-28.30~20.04.1","5.8.0-29.31~20.04.1","5.8.0-31.33~20.04.1","5.8.0-33.36~20.04.1","5.8.0-34.37~20.04.2","5.8.0-36.40~20.04.1","5.8.0-38.43~20.04.1","5.8.0-40.45~20.04.1","5.8.0-41.46~20.04.1"],"ecosystem_specific":{"availability":"No subscription 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