101 lines
6.1 KiB
JSON
101 lines
6.1 KiB
JSON
{
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"schema_version": "1.7.0",
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"id": "USN-5092-3",
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"summary": "linux-azure, linux-azure-5.11 regression",
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"details": "USN-5092-2 fixed vulnerabilities in Linux 5.11-based kernels.\nUnfortunately, for Linux kernels intended for use within Microsoft\nAzure environments, that update introduced a regression that could\ncause the kernel to fail to boot in large Azure instance types.\nThis update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\nValentina Palmiotti discovered that the io_uring subsystem in the Linux\nkernel could be coerced to free adjacent memory. A local attacker could use\nthis to execute arbitrary code. (CVE-2021-41073)\n\nOfek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk\ndiscovered that the BPF verifier in the Linux kernel missed possible\nmispredicted branches due to type confusion, allowing a side-channel\nattack. An attacker could use this to expose sensitive information.\n(CVE-2021-33624)\n\nBenedict Schlueter discovered that the BPF subsystem in the Linux kernel\ndid not properly protect against Speculative Store Bypass (SSB) side-\nchannel attacks in some situations. A local attacker could possibly use\nthis to expose sensitive information. (CVE-2021-34556)\n\nPiotr Krysiuk discovered that the BPF subsystem in the Linux kernel did not\nproperly protect against Speculative Store Bypass (SSB) side-channel\nattacks in some situations. A local attacker could possibly use this to\nexpose sensitive information. (CVE-2021-35477)\n\nIt was discovered that the tracing subsystem in the Linux kernel did not\nproperly keep track of per-cpu ring buffer state. A privileged attacker\ncould use this to cause a denial of service. (CVE-2021-3679)\n\nIt was discovered that the Option USB High Speed Mobile device driver in\nthe Linux kernel did not properly handle error conditions. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code. (CVE-2021-37159)\n\nAlexey Kardashevskiy discovered that the KVM implementation for PowerPC\nsystems in the Linux kernel did not properly validate RTAS arguments in\nsome situations. An attacker in a guest vm could use this to cause a denial\nof service (host OS crash) or possibly execute arbitrary code.\n(CVE-2021-37576)\n\nIt was discovered that the Virtio console implementation in the Linux\nkernel did not properly validate input lengths in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash). (CVE-2021-38160)\n\nMichael Wakabayashi discovered that the NFSv4 client implementation in the\nLinux kernel did not properly order connection setup operations. An\nattacker controlling a remote NFS server could use this to cause a denial\nof service on the client. (CVE-2021-38199)\n\nIt was discovered that the Sun RPC implementation in the Linux kernel\ncontained an out-of-bounds access error. A remote attacker could possibly\nuse this to cause a denial of service (system crash). (CVE-2021-38201)\n\nIt was discovered that the MAX-3421 host USB device driver in the Linux\nkernel did not properly handle device removal events. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2021-38204)\n\nIt was discovered that the Xilinx 10/100 Ethernet Lite device driver in the\nLinux kernel could report pointer addresses in some situations. An attacker\ncould use this information to ease the exploitation of another\nvulnerability. (CVE-2021-38205)\n",
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"aliases": [],
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"upstream": [],
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"related": [],
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"published": "2021-10-18T22:15:15Z",
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"modified": "2026-02-10T04:42:20Z",
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"affected": [
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{
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"package": {
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"ecosystem": "Ubuntu:20.04:LTS",
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"name": "linux-azure-5.11",
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"purl": "pkg:deb/ubuntu/linux-azure-5.11@5.11.0-1019.20~20.04.1?arch=source&distro=focal"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "5.11.0-1019.20~20.04.1"
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}
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]
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}
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],
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"versions": [
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"5.11.0-1007.7~20.04.2",
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"5.11.0-1012.13~20.04.1",
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"5.11.0-1013.14~20.04.1",
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"5.11.0-1015.16~20.04.1",
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"5.11.0-1017.18~20.04.1"
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],
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"ecosystem_specific": {
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"binaries": [
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{
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"binary_name": "linux-azure-5.11-cloud-tools-5.11.0-1019",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-azure-5.11-headers-5.11.0-1019",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-azure-5.11-tools-5.11.0-1019",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-buildinfo-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-cloud-tools-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-headers-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-image-unsigned-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-modules-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-modules-extra-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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},
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{
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"binary_name": "linux-tools-5.11.0-1019-azure",
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"binary_version": "5.11.0-1019.20~20.04.1"
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}
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],
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"availability": "No subscription required"
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},
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"database_specific": {
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"cves_map": {
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"ecosystem": "Ubuntu:20.04:LTS",
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"cves": []
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}
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}
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}
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],
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"references": [
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{
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"type": "ADVISORY",
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"url": "https://ubuntu.com/security/notices/USN-5092-3"
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},
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{
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"type": "REPORT",
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"url": "https://launchpad.net/bugs/1940564"
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}
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]
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} |