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{
"schema_version": "1.7.0",
"id": "USN-5583-2",
"summary": "systemd regression",
"details": "USN-5583-1 fixed vulnerabilities in systemd. Unfortunately this caused a \nregression by introducing networking problems for some users. This update fixes\nthe problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that systemd incorrectly handled certain DNS requests, \n which leads to user-after-free vulnerability. An attacker could possibly use \n this issue to cause a crash or execute arbitrary code. (CVE-2022-2526)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2022-2526"
],
"related": [],
"published": "2022-09-14T03:01:57Z",
"modified": "2026-04-22T07:37:02Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@237-3ubuntu10.56?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "237-3ubuntu10.56"
}
]
}
],
"versions": [
"234-2ubuntu12",
"235-2ubuntu3",
"235-3ubuntu2",
"235-3ubuntu3",
"237-3ubuntu3",
"237-3ubuntu4",
"237-3ubuntu6",
"237-3ubuntu7",
"237-3ubuntu8",
"237-3ubuntu10",
"237-3ubuntu10.2",
"237-3ubuntu10.3",
"237-3ubuntu10.4",
"237-3ubuntu10.6",
"237-3ubuntu10.9",
"237-3ubuntu10.11",
"237-3ubuntu10.12",
"237-3ubuntu10.13",
"237-3ubuntu10.15",
"237-3ubuntu10.17",
"237-3ubuntu10.19",
"237-3ubuntu10.20",
"237-3ubuntu10.21",
"237-3ubuntu10.22",
"237-3ubuntu10.23",
"237-3ubuntu10.24",
"237-3ubuntu10.25",
"237-3ubuntu10.26",
"237-3ubuntu10.28",
"237-3ubuntu10.29",
"237-3ubuntu10.31",
"237-3ubuntu10.33",
"237-3ubuntu10.38",
"237-3ubuntu10.39",
"237-3ubuntu10.40",
"237-3ubuntu10.41",
"237-3ubuntu10.42",
"237-3ubuntu10.43",
"237-3ubuntu10.44",
"237-3ubuntu10.45",
"237-3ubuntu10.46",
"237-3ubuntu10.47",
"237-3ubuntu10.48",
"237-3ubuntu10.49",
"237-3ubuntu10.50",
"237-3ubuntu10.51",
"237-3ubuntu10.52",
"237-3ubuntu10.53",
"237-3ubuntu10.54"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libnss-resolve",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libnss-systemd",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libpam-systemd",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libsystemd0",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libudev1",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "systemd",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "systemd-container",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "systemd-coredump",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "systemd-sysv",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "systemd-tests",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "udev",
"binary_version": "237-3ubuntu10.56"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2022-2526",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5583-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-2526"
},
{
"type": "REPORT",
"url": "https://launchpad.net/bugs/1988119"
}
]
}