USN-6261-1

It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3090)

Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-32629)

It was discovered that the netfilter subsystem in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3390)

Tanguy Dubroca discovered that the netfilter subsystem in the Linux kernel did not properly handle certain pointer data type, leading to an out-of- bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35001)

References

Affected packages

Ubuntu:20.04:LTS / linux-iot

Package

Name: linux-iot
Purl: pkg:deb/ubuntu/linux-iot@5.4.0-1018.19?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.4.0-1018.19

Affected versions

5.*

5.4.0-1001.3

5.4.0-1004.6

5.4.0-1005.7

5.4.0-1006.8

5.4.0-1009.11

5.4.0-1010.12

5.4.0-1011.13

5.4.0-1012.14

5.4.0-1013.15

5.4.0-1014.16

5.4.0-1017.18

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-buildinfo-5.4.0-1018-iot"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-headers-5.4.0-1018-iot"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-image-5.4.0-1018-iot"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-image-unsigned-5.4.0-1018-iot"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-iot-headers-5.4.0-1018"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-iot-tools-5.4.0-1018"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-iot-tools-common"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-modules-5.4.0-1018-iot"
        },
        {
            "binary_version": "5.4.0-1018.19",
            "binary_name": "linux-tools-5.4.0-1018-iot"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2023-3090",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-3390",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-32629",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-35001",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        }
    ]
}