CVE-2021-25142
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Baseboard Management Controller (BMC) firmware in HPE Apollo 70 System prior to version 3.0.14.0 has a local buffer overflow in libifc.so webstartflash function.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA local buffer overflow vulnerability exists in the libifc.so webstartflash function within the Baseboard Management Controller (BMC) firmware of HPE Apollo 70 Systems. An attacker with local access could exploit this to execute arbitrary code or cause a denial of service via crafted input to the flash function.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 3.0.14.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify HPE Apollo 70 System BMCAccess the BMC web interface or use IPMI command 'ipmitool mc info' to confirm the system is an HPE Apollo 70 with BMC firmware.Affected if System is not an HPE Apollo 70 or BMC is not present
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Check BMC firmware versionUse IPMI command 'ipmitool mc info' or check the BMC web interface firmware version display. Compare the installed version to 3.0.14.0.Affected if Firmware version is less than 3.0.14.0 (e.g., 3.0.13.0, 3.0.12.0, etc.)
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Verify libifc.so module presenceAccess BMC via SSH or serial console and check for the presence of /libifc.so or /usr/lib/libifc.so if filesystem is accessible. Some BMC firmware dumps may expose this library.Affected if libifc.so exists and the webstartflash function is exposed
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Assess local access exposureDetermine if untrusted local users have shell access to the BMC OS or if the webstartflash function is exposed via the BMC web interface API.Affected if Local users can interact with the flash function without proper sanitization
The system is affected if it is an HPE Apollo 70 with BMC firmware version below 3.0.14.0, and the libifc.so webstartflash function is accessible.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data3.0.14.0
Update HPE Apollo 70 System BMC firmware to version 3.0.14.0 or later to resolve the buffer overflow in libifc.so. Follow HPE's documented BMC firmware update procedures carefully as firmware updates are critical operations.
- Consultation4.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,152.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-25142 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-25142 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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