Files
vuln-ubuntu/data/osv/usn/USN-5046-1.json
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{
"schema_version": "1.7.0",
"id": "USN-5046-1",
"summary": "linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-raspi vulnerabilities",
"details": "It was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly perform access control. An authenticated attacker could possibly\nuse this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)\n\nMichael Brown discovered that the Xen netback driver in the Linux kernel\ndid not properly handle malformed packets from a network PV frontend,\nleading to a use-after-free vulnerability. An attacker in a guest VM could\nuse this to cause a denial of service or possibly execute arbitrary code.\n(CVE-2021-28691)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle HCI device initialization failure, leading to a double-free\nvulnerability. An attacker could use this to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-3564)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle HCI device detach events, leading to a use-after-free\nvulnerability. An attacker could use this to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-3573)\n\nIt was discovered that the NFC implementation in the Linux kernel did not\nproperly handle failed connect events leading to a NULL pointer\ndereference. A local attacker could use this to cause a denial of service.\n(CVE-2021-3587)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2020-26558",
"UBUNTU-CVE-2021-0129",
"UBUNTU-CVE-2021-3564",
"UBUNTU-CVE-2021-3573",
"UBUNTU-CVE-2021-3587",
"UBUNTU-CVE-2021-28691"
],
"related": [],
"published": "2021-08-18T17:29:24Z",
"modified": "2026-06-03T10:45:26Z",
"affected": [
{
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{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5046-1"
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{
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