USN-5658-1 fixed several vulnerabilities in DHCP. This update provides the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that DHCP incorrectly handled option reference counting. A remote attacker could possibly use this issue to cause DHCP servers to crash, resulting in a denial of service. (CVE-2022-2928)
It was discovered that DHCP incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause DHCP clients and servers to consume resources, leading to a denial of service. (CVE-2022-2929)
{
"binaries": [
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-client"
},
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-client-noddns"
},
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-common"
},
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-dev"
},
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-relay"
},
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-server"
},
{
"binary_version": "4.2.4-7ubuntu12.13+esm2",
"binary_name": "isc-dhcp-server-ldap"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
{
"cves": [
{
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"id": "CVE-2022-2928"
},
{
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"id": "CVE-2022-2929"
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}