HighFix available
u-boot, u-boot-nezha — security advisory
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
- Products
- u-boot, u-boot-nezha
- Affected versions
- 2015.04+dfsg1-2ubuntu1, 2015.10+dfsg1-2, 2015.10+dfsg1-3, 2015.10+dfsg1-4, 2016.01+dfsg1-1, 2016.01+dfsg1-1ubuntu1, 2016.01+dfsg1-2ubuntu1, 2016.01+dfsg1-2ubuntu2, 2016.01+dfsg1-2ubuntu3, 2016.01+dfsg1-2ubuntu5, 2016.01+dfsg1-2ubuntu5+esm1, 2016.01+dfsg1-2ubuntu5+esm2, 2016.03+dfsg1-6ubuntu2, 2018.07~rc3+dfsg1-0ubuntu1~18.04.1, 2018.07~rc3+dfsg1-0ubuntu2~18.04.1, 2018.07~rc3+dfsg1-0ubuntu3~18.04.1, 2019.07+dfsg-1ubuntu3, 2019.07+dfsg-1ubuntu4~18.04.1, 2019.07+dfsg-1ubuntu5, 2019.07+dfsg-1ubuntu6, 2020.10+dfsg-1ubuntu0~18.04.2, 2020.10+dfsg-1ubuntu0~18.04.3, 2020.10+dfsg-1ubuntu0~18.04.3+esm1, 2020.10+dfsg-1ubuntu0~18.04.3+esm2, 2020.10+dfsg-1ubuntu0~20.04.2, 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, 2021.01+dfsg-3ubuntu0~20.04.6+esm1, 2021.01+dfsg-3ubuntu0~20.04.6+esm2, 2021.07+dfsg-0ubuntu10, 2021.07+dfsg-0ubuntu8, 2021.07+dfsg-0ubuntu9, 2021.09+git20211008.62392d3-0ubuntu1, 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, 2022.04+git20220405.7446a472-0ubuntu0.1, 2022.04+git20220405.7446a472-0ubuntu0.2, 2022.04+git20220405.7446a472-0ubuntu0.3, 2022.04+git20220405.7446a472-0ubuntu0.4, 2022.10-1089-g528ae9bc6c-0ubuntu2, 2023.07+dfsg-1ubuntu2, 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, 2024.01~rc1-190-g2e89b706f5-0ubuntu1, 2024.01~rc1-190-g2e89b706f5-0ubuntu2, 2024.01~rc1-190-g2e89b706f5-0ubuntu2.24.04.2, 2025.01-0ubuntu0.24.04.1, 2025.01-0ubuntu0.24.04.2, 2025.10-0ubuntu0.24.04.1
- Fixed versions
- 2022.01+dfsg-2ubuntu2.7, 2025.10-0ubuntu0.24.04.2
- CVEs
- CVE-2024-57256
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:23 UTC · Revision 1
Source evidence
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
osv:UBUNTU-CVE-2024-57256
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: 2022.01+dfsg-2ubuntu2.7
u-boot-nezha
Fixed versions: Not specified
u-boot
Fixed versions: 2025.10-0ubuntu0.24.04.2
u-boot-nezha
Fixed versions: Not specified
Complete source record
{
"id": "925e25e9e5458230a7d36f8de11a6adcf07d712b2a6bc3010040800ddafe7572",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2024-57256",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2024-57256",
"summary": "An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.",
"evidence": "osv:UBUNTU-CVE-2024-57256",
"products": [
{
"name": {
"value": "u-boot",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2015.04+dfsg1-2ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "2015.10+dfsg1-2",
"evidence": "/affected/0/versions"
},
{
"value": "2015.10+dfsg1-3",
"evidence": "/affected/0/versions"
},
{
"value": "2015.10+dfsg1-4",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu5",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu5+esm1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu5+esm2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2016.03+dfsg1-6ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "2018.07~rc3+dfsg1-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2018.07~rc3+dfsg1-0ubuntu2~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2018.07~rc3+dfsg1-0ubuntu3~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2019.07+dfsg-1ubuntu4~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.3+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.3+esm2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2019.07+dfsg-1ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "2019.07+dfsg-1ubuntu5",
"evidence": "/affected/2/versions"
},
{
"value": "2019.07+dfsg-1ubuntu6",
"evidence": "/affected/2/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.3",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.4",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.5",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.6",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.6+esm1",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.6+esm2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2022.01+dfsg-2ubuntu2.7",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "2021.07+dfsg-0ubuntu8",
"evidence": "/affected/3/versions"
},
{
"value": "2021.07+dfsg-0ubuntu9",
"evidence": "/affected/3/versions"
},
{
"value": "2021.07+dfsg-0ubuntu10",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu2",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu2.1",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu2.3",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu2.4",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu2.5",
"evidence": "/affected/3/versions"
},
{
"value": "2022.01+dfsg-2ubuntu2.6",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "u-boot-nezha",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2021.09+git20211008.62392d3-0ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "2022.04+git20220405.7446a472-0ubuntu0.1",
"evidence": "/affected/4/versions"
},
{
"value": "2022.04+git20220405.7446a472-0ubuntu0.2",
"evidence": "/affected/4/versions"
},
{
"value": "2022.04+git20220405.7446a472-0ubuntu0.3",
"evidence": "/affected/4/versions"
},
{
"value": "2022.04+git20220405.7446a472-0ubuntu0.4",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2025.10-0ubuntu0.24.04.2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": [
{
"value": "2023.07+dfsg-1ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu3",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu4",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu5",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu5.1",
"evidence": "/affected/5/versions"
},
{
"value": "2024.01+dfsg-1ubuntu5.2",
"evidence": "/affected/5/versions"
},
{
"value": "2025.01-0ubuntu0.24.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "2025.01-0ubuntu0.24.04.2",
"evidence": "/affected/5/versions"
},
{
"value": "2025.10-0ubuntu0.24.04.1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "u-boot-nezha",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2022.10-1089-g528ae9bc6c-0ubuntu2",
"evidence": "/affected/6/versions"
},
{
"value": "2024.01~rc1-190-g2e89b706f5-0ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "2024.01~rc1-190-g2e89b706f5-0ubuntu2",
"evidence": "/affected/6/versions"
},
{
"value": "2024.01~rc1-190-g2e89b706f5-0ubuntu2.24.04.2",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2024-57256",
"aliases": [
"UBUNTU-CVE-2024-57256"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra-legacy%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"2015.04+dfsg1-2ubuntu1",
"2015.10+dfsg1-2",
"2015.10+dfsg1-3",
"2015.10+dfsg1-4",
"2016.01+dfsg1-1",
"2016.01+dfsg1-1ubuntu1",
"2016.01+dfsg1-2ubuntu1",
"2016.01+dfsg1-2ubuntu2",
"2016.01+dfsg1-2ubuntu3",
"2016.01+dfsg1-2ubuntu5",
"2016.01+dfsg1-2ubuntu5+esm1",
"2016.01+dfsg1-2ubuntu5+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-57256.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "u-boot",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-exynos",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-imx",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-omap",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-rockchip",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-rpi",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-sunxi",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-tegra",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-tools",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"2016.03+dfsg1-6ubuntu2",
"2018.07~rc3+dfsg1-0ubuntu1~18.04.1",
"2018.07~rc3+dfsg1-0ubuntu2~18.04.1",
"2018.07~rc3+dfsg1-0ubuntu3~18.04.1",
"2019.07+dfsg-1ubuntu4~18.04.1",
"2020.10+dfsg-1ubuntu0~18.04.2",
"2020.10+dfsg-1ubuntu0~18.04.3",
"2020.10+dfsg-1ubuntu0~18.04.3+esm1",
"2020.10+dfsg-1ubuntu0~18.04.3+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-57256.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "u-boot",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-amlogic",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-exynos",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-imx",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-mvebu",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-omap",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-qcom",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-qemu",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-rockchip",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-rpi",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-sunxi",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-tegra",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-tools",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"2019.07+dfsg-1ubuntu3",
"2019.07+dfsg-1ubuntu5",
"2019.07+dfsg-1ubuntu6",
"2020.10+dfsg-1ubuntu0~20.04.2",
"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",
"2021.01+dfsg-3ubuntu0~20.04.6+esm1",
"2021.01+dfsg-3ubuntu0~20.04.6+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-57256.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "u-boot",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-amlogic",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-exynos",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-imx",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-mvebu",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-omap",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-qcom",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-qemu",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-rockchip",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-rpi",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-sifive",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-sunxi",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-tegra",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-tools",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2022.01+dfsg-2ubuntu2.7"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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],
"modified": "2026-10-17T12:56:46.357491535Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2024-57256",
"https://www.cve.org/CVERecord?id=CVE-2024-57256",
"https://www.openwall.com/lists/oss-security/2025/02/17/2",
"https://ubuntu.com/security/notices/USN-8056-1"
]
},
"related_cves": [
{
"value": "CVE-2024-57256",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356218,
"published_at": "2025-02-18T23:15:00+00:00"
}