USN-5583-1 fixed vulnerabilities in systemd. Unfortunately this caused a regression by introducing networking problems for some users. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that systemd incorrectly handled certain DNS requests, which leads to user-after-free vulnerability. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2022-2526)
{
"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": "libsystemd-dev",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libsystemd0",
"binary_version": "237-3ubuntu10.56"
},
{
"binary_name": "libudev-dev",
"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"
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5583-2.json"
{
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2022-2526"
}
]
}