UBUNTU-CVE-2026-29009

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Source
https://ubuntu.com/security/CVE-2026-29009
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-29009
Upstream
Published
2026-07-08T17:17:00Z
Modified
2026-07-29T10:19:04.724142409Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

U-Boot before 2026.07-rc2 contains a buffer overflow vulnerability in nfsreadlinkreply() (net/nfs-common.c) when CONFIGCMDNFS is enabled, allowing a malicious or compromised NFS server to overflow the 2048-byte nfspathbuff buffer by returning multiple relative symlink targets that are appended without cumulative length validation. Attackers can send two or more READLINK responses containing relative symlink targets of approximately 1100 bytes each to corrupt adjacent BSS variables including nfsserverip, nfsservermountport, nfsserverport, nfsourport, nfsstate, and rpc_id, potentially achieving memory corruption and control over the NFS client state machine.

References

Affected packages

Ubuntu:16.04:LTS
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2015.*
2015.04+dfsg1-2ubuntu1
2015.10+dfsg1-2
2015.10+dfsg1-3
2015.10+dfsg1-4
2016.*
2016.01+dfsg1-1
2016.01+dfsg1-1ubuntu1
2016.01+dfsg1-2ubuntu1
2016.01+dfsg1-2ubuntu2
2016.01+dfsg1-2ubuntu3
2016.01+dfsg1-2ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2016.01+dfsg1-2ubuntu5",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
Ubuntu:18.04:LTS
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2016.*
2016.03+dfsg1-6ubuntu2
2018.*
2018.07~rc3+dfsg1-0ubuntu1~18.04.1
2018.07~rc3+dfsg1-0ubuntu2~18.04.1
2018.07~rc3+dfsg1-0ubuntu3~18.04.1
2019.*
2019.07+dfsg-1ubuntu4~18.04.1
2020.*
2020.10+dfsg-1ubuntu0~18.04.2
2020.10+dfsg-1ubuntu0~18.04.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-amlogic"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-mvebu"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-qcom"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-qemu"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.3",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
Ubuntu:20.04:LTS
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2019.*
2019.07+dfsg-1ubuntu3
2019.07+dfsg-1ubuntu5
2019.07+dfsg-1ubuntu6
2020.*
2020.10+dfsg-1ubuntu0~20.04.2
2021.*
2021.01+dfsg-3ubuntu0~20.04.1
2021.01+dfsg-3ubuntu0~20.04.3
2021.01+dfsg-3ubuntu0~20.04.4
2021.01+dfsg-3ubuntu0~20.04.5
2021.01+dfsg-3ubuntu0~20.04.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-amlogic"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-mvebu"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-qcom"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-qemu"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-sifive"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.6",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
Ubuntu:22.04:LTS
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2021.*
2021.07+dfsg-0ubuntu8
2021.07+dfsg-0ubuntu9
2021.07+dfsg-0ubuntu10
2022.*
2022.01+dfsg-2ubuntu1
2022.01+dfsg-2ubuntu2
2022.01+dfsg-2ubuntu2.1
2022.01+dfsg-2ubuntu2.3
2022.01+dfsg-2ubuntu2.4
2022.01+dfsg-2ubuntu2.5
2022.01+dfsg-2ubuntu2.6
2022.01+dfsg-2ubuntu2.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-amlogic"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-microchip"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-mvebu"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-qcom"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-qemu"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-sifive"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2022.01+dfsg-2ubuntu2.7",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
u-boot-nezha

Package

Name
u-boot-nezha
Purl
pkg:deb/ubuntu/u-boot-nezha?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2021.*
2021.09+git20211008.62392d3-0ubuntu1
2022.*
2022.04+git20220405.7446a472-0ubuntu0.1
2022.04+git20220405.7446a472-0ubuntu0.2
2022.04+git20220405.7446a472-0ubuntu0.3
2022.04+git20220405.7446a472-0ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2022.04+git20220405.7446a472-0ubuntu0.4",
            "binary_name": "u-boot-nezha"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
Ubuntu:24.04:LTS
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2023.*
2023.07+dfsg-1ubuntu2
2024.*
2024.01+dfsg-1ubuntu1
2024.01+dfsg-1ubuntu2
2024.01+dfsg-1ubuntu3
2024.01+dfsg-1ubuntu4
2024.01+dfsg-1ubuntu5
2024.01+dfsg-1ubuntu5.1
2024.01+dfsg-1ubuntu5.2
2025.*
2025.01-0ubuntu0.24.04.1
2025.01-0ubuntu0.24.04.2
2025.10-0ubuntu0.24.04.1
2025.10-0ubuntu0.24.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-amlogic"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-amlogic-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-asahi"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-exynos-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-microchip"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-mvebu"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-qcom"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-qemu"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-sifive"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-sitara-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-starfive"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-stm32"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2025.10-0ubuntu0.24.04.2",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
u-boot-nezha

Package

Name
u-boot-nezha
Purl
pkg:deb/ubuntu/u-boot-nezha?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2022.*
2022.10-1089-g528ae9bc6c-0ubuntu2
2024.*
2024.01~rc1-190-g2e89b706f5-0ubuntu1
2024.01~rc1-190-g2e89b706f5-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2024.01~rc1-190-g2e89b706f5-0ubuntu2",
            "binary_name": "u-boot-nezha"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
Ubuntu:25.10
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2025.*
2025.01-1~0ubuntu2
2025.01-3ubuntu1
2025.01-3ubuntu2
2025.01-3ubuntu4
2025.10-0ubuntu0.25.10.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-amlogic"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-amlogic-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-asahi"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-exynos-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-microchip"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-mvebu"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-qcom"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-qemu"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-sifive"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-sitara-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-starfive"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-stm32"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2025.10-0ubuntu0.25.10.1",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"
Ubuntu:26.04:LTS
u-boot

Package

Name
u-boot
Purl
pkg:deb/ubuntu/u-boot?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2025.*
2025.01-3ubuntu4
2025.10-0ubuntu1
2025.10-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-amlogic"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-amlogic-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-asahi"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-exynos"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-exynos-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-imx"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-microchip"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-mvebu"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-omap"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-qcom"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-qemu"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-rockchip"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-rpi"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-sifive"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-sitara-binaries"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-starfive"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-stm32"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-sunxi"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-tegra"
        },
        {
            "binary_version": "2025.10-0ubuntu2",
            "binary_name": "u-boot-tools"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29009.json"