USN-6107-1

It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed. (CVE-2023-1829)

It was discovered that a race condition existed in the io_uring subsystem in the Linux kernel, 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-2023-1872)

References

Affected packages

Ubuntu:20.04:LTS / linux-gcp-5.15

Package

Name: linux-gcp-5.15
Purl: pkg:deb/ubuntu/linux-gcp-5.15@5.15.0-1033.41~20.04.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.15.0-1033.41~20.04.1

Affected versions

5.*

5.15.0-1006.9~20.04.1

5.15.0-1012.17~20.04.1

5.15.0-1013.18~20.04.1

5.15.0-1016.21~20.04.1

5.15.0-1017.23~20.04.2

5.15.0-1018.24~20.04.1

5.15.0-1021.28~20.04.1

5.15.0-1022.29~20.04.1

5.15.0-1025.32~20.04.2

5.15.0-1026.33~20.04.1

5.15.0-1027.34~20.04.1

5.15.0-1029.36~20.04.1

5.15.0-1030.37~20.04.1

5.15.0-1031.38~20.04.1

5.15.0-1032.40~20.04.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-buildinfo-5.15.0-1033-gcp"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-gcp-5.15-headers-5.15.0-1033"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-gcp-5.15-tools-5.15.0-1033"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-headers-5.15.0-1033-gcp"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-image-unsigned-5.15.0-1033-gcp"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-modules-5.15.0-1033-gcp"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-modules-extra-5.15.0-1033-gcp"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-modules-iwlwifi-5.15.0-1033-gcp"
        },
        {
            "binary_version": "5.15.0-1033.41~20.04.1",
            "binary_name": "linux-tools-5.15.0-1033-gcp"
        }
    ],
    "availability": "No subscription required"
}

Database specific

{
    "cves_map": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "cves": [
            {
                "id": "CVE-2023-1829",
                "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-2023-1872",
                "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": "medium"
                    }
                ]
            }
        ]
    }
}