{ "schema_version": "1.7.0", "id": "LSN-0079-1", "summary": "Kernel Live Patch Security Notice", "details": "It was discovered that the eBPF implementation in the Linux kernel did not\nproperly track bounds information for 32 bit registers when performing div\nand mod operations. A local attacker could use this to possibly execute\narbitrary code.(CVE-2021-3600)\n\nIt was discovered that the virtual file system implementation in the Linux\nkernel contained an unsigned to signed integer conversion error. A local\nattacker could use this to cause a denial of service (system crash) or\nexecute arbitrary code.(CVE-2021-33909)", "aliases": [], "upstream": [ "UBUNTU-CVE-2021-3600", "UBUNTU-CVE-2021-33909" ], "related": [], "published": "2021-07-26T06:29:13Z", "modified": "2026-06-03T10:46:31Z", "affected": [ { "package": { "ecosystem": "Ubuntu:Pro:14.04:LTS", "name": "linux-lts-xenial", "purl": "pkg:deb/ubuntu/linux-lts-xenial@4.4.0-212.244~14.04.1?arch=source&distro=trusty/esm" }, "ranges": [ { "type": "ECOSYSTEM", "events": [ { "introduced": "0" }, { "fixed": "4.4.0-212.244~14.04.1" } ] } ], "versions": [ "4.4.0-13.29~14.04.1", "4.4.0-14.30~14.04.2", "4.4.0-15.31~14.04.1", "4.4.0-18.34~14.04.1", "4.4.0-21.37~14.04.1", "4.4.0-22.39~14.04.1", "4.4.0-22.40~14.04.1", "4.4.0-24.43~14.04.1", "4.4.0-28.47~14.04.1", "4.4.0-31.50~14.04.1", "4.4.0-34.53~14.04.1", "4.4.0-36.55~14.04.1", "4.4.0-38.57~14.04.1", "4.4.0-42.62~14.04.1", "4.4.0-45.66~14.04.1", "4.4.0-47.68~14.04.1", "4.4.0-51.72~14.04.1", 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"https://ubuntu.com/security/notices/LSN-0079-1" }, { "type": "REPORT", "url": "https://ubuntu.com/security/CVE-2021-3600" }, { "type": "REPORT", "url": "https://ubuntu.com/security/CVE-2021-33909" } ] }