USN-8255-3

Stonejiajia, 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-2023-2640)

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)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network drivers; - NVME drivers; (CVE-2026-23112, CVE-2026-23273)

References

Affected packages

Ubuntu:Pro:20.04:LTS / linux-nvidia-tegra-5.15

Package

Name: linux-nvidia-tegra-5.15
Purl: pkg:deb/ubuntu/linux-nvidia-tegra-5.15?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.15.0-1058.58~20.04.1

Affected versions

5.*

5.15.0-1009.9~20.04.1

5.15.0-1010.10~20.04.1

5.15.0-1012.12~20.04.1

5.15.0-1014.14~20.04.1

5.15.0-1015.15~20.04.1

5.15.0-1016.16~20.04.1

5.15.0-1017.17~20.04.1

5.15.0-1018.18~20.04.1

5.15.0-1019.19~20.04.1

5.15.0-1020.20~20.04.1

5.15.0-1022.22~20.04.1

5.15.0-1025.25~20.04.1

5.15.0-1027.27~20.04.1

5.15.0-1030.30~20.04.1

5.15.0-1032.32~20.04.1

5.15.0-1039.39~20.04.1

5.15.0-1040.40~20.04.1

5.15.0-1041.41~20.04.1

5.15.0-1042.42~20.04.1

5.15.0-1043.43~20.04.1

5.15.0-1044.44~20.04.1

5.15.0-1045.45~20.04.1

5.15.0-1046.46~20.04.1

5.15.0-1047.47~20.04.1

5.15.0-1048.48~20.04.1

5.15.0-1049.49~20.04.1

5.15.0-1050.50~20.04.1

5.15.0-1051.51~20.04.1

5.15.0-1052.52~20.04.2

5.15.0-1053.53~20.04.1

5.15.0-1055.55~20.04.1

5.15.0-1057.57~20.04.1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-buildinfo-5.15.0-1058-nvidia-tegra"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-buildinfo-5.15.0-1058-nvidia-tegra-rt"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-headers-5.15.0-1058-nvidia-tegra"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-headers-5.15.0-1058-nvidia-tegra-rt"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-image-unsigned-5.15.0-1058-nvidia-tegra"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-image-unsigned-5.15.0-1058-nvidia-tegra-rt"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-modules-5.15.0-1058-nvidia-tegra"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-modules-5.15.0-1058-nvidia-tegra-rt"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-modules-extra-5.15.0-1058-nvidia-tegra"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-nvidia-tegra-5.15-headers-5.15.0-1058"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-nvidia-tegra-5.15-tools-5.15.0-1058"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-tools-5.15.0-1058-nvidia-tegra"
        },
        {
            "binary_version": "5.15.0-1058.58~20.04.1",
            "binary_name": "linux-tools-5.15.0-1058-nvidia-tegra-rt"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8255-3.json"

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "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-2023-2640"
        },
        {
            "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-2023-32629"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-23112"
        },
        {
            "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": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-23273"
        }
    ]
}

Ubuntu:22.04:LTS / linux-raspi

Package

Name: linux-raspi
Purl: pkg:deb/ubuntu/linux-raspi?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.15.0-1100.103

Affected versions

5.*

5.13.0-1008.9

5.15.0-1002.2

5.15.0-1003.3

5.15.0-1004.4

5.15.0-1005.5

5.15.0-1006.6

5.15.0-1008.8

5.15.0-1011.13

5.15.0-1012.14

5.15.0-1013.15

5.15.0-1014.16

5.15.0-1015.17

5.15.0-1016.18

5.15.0-1017.19

5.15.0-1018.20

5.15.0-1021.23

5.15.0-1022.24

5.15.0-1023.25

5.15.0-1024.26

5.15.0-1025.27

5.15.0-1026.28

5.15.0-1027.29

5.15.0-1028.30

5.15.0-1029.31

5.15.0-1030.32

5.15.0-1032.35

5.15.0-1033.36

5.15.0-1034.37

5.15.0-1035.38

5.15.0-1036.39

5.15.0-1037.40

5.15.0-1038.41

5.15.0-1040.43

5.15.0-1041.44

5.15.0-1042.45

5.15.0-1043.46

5.15.0-1044.47

5.15.0-1045.48

5.15.0-1046.49

5.15.0-1047.50

5.15.0-1048.51

5.15.0-1049.52

5.15.0-1050.53

5.15.0-1053.56

5.15.0-1054.57

5.15.0-1055.58

5.15.0-1058.61

5.15.0-1059.62

5.15.0-1060.63

5.15.0-1061.64

5.15.0-1062.65

5.15.0-1063.66

5.15.0-1064.67

5.15.0-1065.68

5.15.0-1066.69

5.15.0-1067.70

5.15.0-1070.73

5.15.0-1071.74

5.15.0-1072.75

5.15.0-1073.76

5.15.0-1074.77

5.15.0-1075.78

5.15.0-1076.79

5.15.0-1077.80

5.15.0-1078.81

5.15.0-1079.82

5.15.0-1080.83

5.15.0-1083.86

5.15.0-1084.87

5.15.0-1085.88

5.15.0-1086.89

5.15.0-1087.90

5.15.0-1089.92

5.15.0-1090.93

5.15.0-1091.94

5.15.0-1092.95

5.15.0-1093.96

5.15.0-1097.100

5.15.0-1098.101

5.15.0-1099.102

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-buildinfo-5.15.0-1100-raspi"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-headers-5.15.0-1100-raspi"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-image-5.15.0-1100-raspi"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-modules-5.15.0-1100-raspi"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-modules-extra-5.15.0-1100-raspi"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-raspi-headers-5.15.0-1100"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-raspi-tools-5.15.0-1100"
        },
        {
            "binary_version": "5.15.0-1100.103",
            "binary_name": "linux-tools-5.15.0-1100-raspi"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8255-3.json"

cves_map

{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "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-2023-2640"
        },
        {
            "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-2023-32629"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-23112"
        },
        {
            "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": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-23273"
        }
    ]
}