Debian LinuxOperating system · Debian
CVE-2020-24511
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 · uneditedImproper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
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 confidenceThis is a hardware vulnerability in certain Intel processors where improper isolation of shared resources allows an authenticated local user to potentially disclose information. The vulnerability stems from insufficient isolation in the processor's shared resources, likely affecting cache or speculative execution mechanisms, enabling a local attacker to access sensitive data through the affected resource.
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
Debian LinuxOperating system
= 10.0< 20210608all versionsall versionsall versionsCVSS 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
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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.
-
Identify the processor vendorRun `lscpu | grep -i vendor` or check /proc/cpuinfo to confirm the system uses an Intel processorAffected if The processor is from Intel and matches the affected product line for this CVE
-
Check the installed Intel microcode versionRun `dmesg | grep -i microcode` or check `cat /proc/cpuinfo` for the microcode version field. On some systems, use `intel-microcode --version` or the firmware-tools package.Affected if The microcode version shown is earlier than 20210608 (for example, versions like 20200616 or earlier)
-
Determine the system BIOS/firmware versionFor NetApp systems, access the BIOS/UEFI setup during boot, or use IPMI/Redfish interfaces, or run vendor-specific CLI tools like `ipmitool` or the NetApp management interface to retrieve the BIOS versionAffected if For NetApp FAS/AFF, HCI Compute Node, or Solidfire systems, any unpatched BIOS version is potentially affected since all versions are listed as vulnerable
-
Compare installed versions to affected rangesDocument the microcode version from step 2 and the BIOS version from step 3, then compare each against the affected thresholds: Intel Microcode < 20210608, or any unpatched NetApp BIOS versionAffected if Either the Intel microcode version is below 20210608, or the NetApp system BIOS has not been updated with the vendor-supplied patch
A system is affected if it runs on an Intel processor with microcode version earlier than 20210608, or if it is a NetApp FAS/AFF, HCI Compute Node, or Solidfire system with an unpatched BIOS version.
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 data20210608
Apply Intel microcode updates and corresponding BIOS/firmware updates from the system manufacturer. Verify that affected processors are patched to the latest vendor-provided firmware version.
Fix this in Debian Linux
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-24511 — 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-2020-24511 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data