USN-6442-1

Ross Lagerwall discovered that the Xen netback backend driver in the Linux kernel did not properly handle certain unusual packets from a paravirtualized network frontend, leading to a buffer overflow. An attacker in a guest VM could use this to cause a denial of service (host system crash) or possibly execute arbitrary code. (CVE-2023-34319)

It was discovered that the netfilter subsystem in the Linux kernel did not properly handle PIPAPO element removal, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-4004)

Kyle Zeng discovered that the networking stack implementation in the Linux kernel did not properly validate skb object size in certain conditions. An attacker could use this cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-42752)

Kyle Zeng discovered that the netfiler subsystem in the Linux kernel did not properly calculate array offsets, leading to a out-of-bounds write vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-42753)

Kyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP) classifier implementation in the Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash). Please note that kernel packet classifier support for RSVP has been removed to resolve this vulnerability. (CVE-2023-42755)

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-42756)

Bing-Jhong Billy Jheng discovered that the Unix domain socket implementation in the Linux kernel contained a race condition in certain situations, 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-2023-4622)

Budimir Markovic discovered that the qdisc implementation in the Linux kernel did not properly validate inner classes, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4623)

Alex Birnberg discovered that the netfilter subsystem in the Linux kernel did not properly validate register length, leading to an out-of- bounds write vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-4881)

It was discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel did not properly handle network packets in certain 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-2023-4921)

References

Affected packages

Ubuntu:20.04:LTS / linux-bluefield

Package

Name: linux-bluefield
Purl: pkg:deb/ubuntu/linux-bluefield@5.4.0-1073.79?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.4.0-1073.79

Affected versions

5.*

5.4.0-1007.10

5.4.0-1011.14

5.4.0-1012.15

5.4.0-1013.16

5.4.0-1016.19

5.4.0-1019.22

5.4.0-1020.23

5.4.0-1021.24

5.4.0-1022.25

5.4.0-1023.26

5.4.0-1025.28

5.4.0-1026.29

5.4.0-1028.31

5.4.0-1030.33

5.4.0-1032.35

5.4.0-1035.38

5.4.0-1036.39

5.4.0-1040.44

5.4.0-1042.47

5.4.0-1044.49

5.4.0-1045.50

5.4.0-1046.51

5.4.0-1047.52

5.4.0-1049.55

5.4.0-1050.56

5.4.0-1054.60

5.4.0-1058.64

5.4.0-1059.65

5.4.0-1060.66

5.4.0-1062.68

5.4.0-1064.70

5.4.0-1065.71

5.4.0-1066.72

5.4.0-1068.74

5.4.0-1070.76

5.4.0-1071.77

5.4.0-1072.78

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-bluefield-headers-5.4.0-1073"
        },
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-bluefield-tools-5.4.0-1073"
        },
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-buildinfo-5.4.0-1073-bluefield"
        },
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-headers-5.4.0-1073-bluefield"
        },
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-image-unsigned-5.4.0-1073-bluefield"
        },
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-modules-5.4.0-1073-bluefield"
        },
        {
            "binary_version": "5.4.0-1073.79",
            "binary_name": "linux-tools-5.4.0-1073-bluefield"
        }
    ]
}

Database specific

{
    "cves_map": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "cves": [
            {
                "id": "CVE-2023-4004",
                "severity": [
                    {
                        "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": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-4622",
                "severity": [
                    {
                        "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:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-4623",
                "severity": [
                    {
                        "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": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-4881",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-4921",
                "severity": [
                    {
                        "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": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-34319",
                "severity": [
                    {
                        "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": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-42752",
                "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": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-42753",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:L/AC:H/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": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-42755",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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": "high",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2023-42756",
                "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": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ]
            }
        ]
    }
}