USN-6462-2

Seth Jenkins discovered that the Linux kernel did not properly perform address randomization for a per-cpu memory management structure. A local attacker could use this to expose sensitive information (kernel memory) or in conjunction with another kernel vulnerability. (CVE-2023-0597)

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083)

Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772)

It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel did not properly handle device initialization failures in certain situations, leading to a use-after-free vulnerability. A physically proximate attacker could use this cause a denial of service (system crash). (CVE-2023-4132)

References

Affected packages

Ubuntu:20.04:LTS / linux-iot

Package

Name: linux-iot
Purl: pkg:deb/ubuntu/linux-iot@5.4.0-1025.26?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.4.0-1025.26

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

5.4.0-1018.19

5.4.0-1019.20

5.4.0-1021.22

5.4.0-1022.23

5.4.0-1023.24

5.4.0-1024.25

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-buildinfo-5.4.0-1025-iot"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-headers-5.4.0-1025-iot"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-image-5.4.0-1025-iot"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-image-unsigned-5.4.0-1025-iot"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-iot-headers-5.4.0-1025"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-iot-tools-5.4.0-1025"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-iot-tools-common"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-modules-5.4.0-1025-iot"
        },
        {
            "binary_version": "5.4.0-1025.26",
            "binary_name": "linux-tools-5.4.0-1025-iot"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-0597"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-3772"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-4132"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-31083"
        }
    ]
}