USN-6441-2

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)

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:Pro:18.04:LTS / linux-gcp-5.4

Package

Name: linux-gcp-5.4
Purl: pkg:deb/ubuntu/linux-gcp-5.4@5.4.0-1116.125~18.04.1?arch=source&distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.4.0-1116.125~18.04.1

Affected versions

5.*

5.4.0-1019.19~18.04.2

5.4.0-1021.21~18.04.1

5.4.0-1022.22~18.04.1

5.4.0-1024.24~18.04.1

5.4.0-1025.25~18.04.1

5.4.0-1028.29~18.04.1

5.4.0-1029.31~18.04.1

5.4.0-1030.32~18.04.1

5.4.0-1032.34~18.04.1

5.4.0-1033.35~18.04.1

5.4.0-1034.37~18.04.1

5.4.0-1036.39~18.04.1

5.4.0-1037.40~18.04.1

5.4.0-1038.41~18.04.1

5.4.0-1040.43~18.04.1

5.4.0-1041.44~18.04.1

5.4.0-1042.45~18.04.1

5.4.0-1043.46~18.04.1

5.4.0-1044.47~18.04.2

5.4.0-1046.49~18.04.1

5.4.0-1049.53~18.04.1

5.4.0-1051.55~18.04.1

5.4.0-1052.56~18.04.1

5.4.0-1053.57~18.04.1

5.4.0-1055.59~18.04.1

5.4.0-1056.60~18.04.1

5.4.0-1057.61~18.04.1

5.4.0-1058.62~18.04.1

5.4.0-1059.63~18.04.1

5.4.0-1060.64~18.04.1

5.4.0-1062.66~18.04.1

5.4.0-1063.67~18.04.1

5.4.0-1064.68~18.04.1

5.4.0-1065.69~18.04.1

5.4.0-1067.71~18.04.1

5.4.0-1068.72~18.04.1

5.4.0-1069.73~18.04.1

5.4.0-1072.77~18.04.1

5.4.0-1073.78~18.04.1

5.4.0-1075.80~18.04.1

5.4.0-1078.84~18.04.1

5.4.0-1080.87~18.04.1

5.4.0-1083.91~18.04.1

5.4.0-1084.92~18.04.1

5.4.0-1086.94~18.04.1

5.4.0-1087.95~18.04.1

5.4.0-1089.97~18.04.1

5.4.0-1092.101~18.04.1

5.4.0-1093.102~18.04.1

5.4.0-1096.105~18.04.2

5.4.0-1097.106~18.04.1

5.4.0-1098.107~18.04.1

5.4.0-1100.109~18.04.1

5.4.0-1101.110~18.04.1

5.4.0-1102.111~18.04.2

5.4.0-1103.112~18.04.1

5.4.0-1104.113~18.04.1

5.4.0-1105.114~18.04.1

5.4.0-1106.115~18.04.1

5.4.0-1107.116~18.04.1

5.4.0-1108.117~18.04.1

5.4.0-1109.118~18.04.1

5.4.0-1110.119~18.04.1

5.4.0-1111.120~18.04.1

5.4.0-1112.121~18.04.1

5.4.0-1113.122~18.04.1

5.4.0-1115.124~18.04.1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "linux-buildinfo-5.4.0-1116-gcp",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-gcp-5.4-headers-5.4.0-1116",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-gcp-5.4-tools-5.4.0-1116",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-headers-5.4.0-1116-gcp",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-image-unsigned-5.4.0-1116-gcp",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-modules-5.4.0-1116-gcp",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-modules-extra-5.4.0-1116-gcp",
            "binary_version": "5.4.0-1116.125~18.04.1"
        },
        {
            "binary_name": "linux-tools-5.4.0-1116-gcp",
            "binary_version": "5.4.0-1116.125~18.04.1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "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:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2023-4622"
        },
        {
            "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-2023-4623"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2023-4881"
        },
        {
            "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-2023-4921"
        },
        {
            "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": "medium"
                }
            ],
            "id": "CVE-2023-34319"
        },
        {
            "severity": [
                {
                    "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": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2023-42752"
        },
        {
            "severity": [
                {
                    "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": "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-2023-42753"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "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": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2023-42755"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "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": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2023-42756"
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}