Vulnerability in Das U-Boot (CVE-2024-57256)
Summary
Vulnerability in Das U-Boot (CVE-2024-57256). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2024-57256 has been found in Das U-Boot.
Successful exploitation can lead to full system takeover. CVSS score: 7.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Das U-Boot CVE-2024-57256" on the vendor's site.
CVE-2024-57256 (Das U-Boot) — CWE-190 / CVSS v3 7.1
Attack vector: physical / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-190) exists in Das U-Boot.
Check the vendor advisory for the affected versions of Das U-Boot.
Severity: High (CVSS 7.1/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Das U-Boot を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2024-57256 u-boot Fixed in: 2021.01+dfsg-5+deb11u1
- Ubuntu UBUNTU-CVE-2024-57256 u-boot
References
- web source.denx.de
- web openwall.com
- web lists.debian.org
- web cert-portal.siemens.com
- web nvd.nist.gov
- web github.com