CVE-2024-24199
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 · uneditedsmartdns commit 54b4dc was discovered to contain a misaligned address at smartdns/src/dns.c.
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 memory alignment vulnerability exists in smartdns DNS server at smartdns/src/dns.c in commit 54b4dc. The misaligned address issue occurs when data is accessed at an address not properly aligned for its type, which can cause undefined behavior including incorrect data reads, crashes, or potential information disclosure. This occurs in DNS packet processing code, potentially allowing remote attackers to trigger the misalignment through specially crafted DNS queries.
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= 45CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Verify smartdns is installedCheck if the smartdns binary exists and is accessible: which smartdns or ls -la /usr/sbin/smartdnsAffected if smartdns binary is not found on the system
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Identify smartdns versionRun smartdns --version or smartdns -v to retrieve the installed version numberAffected if The installed version is exactly 45 (version 45)
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Confirm smartdns service is activeCheck if the smartdns service is running: systemctl status smartdns or ps aux | grep smartdnsAffected if The service is running and processing DNS queries
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Check if DNS queries are acceptedReview smartdns configuration file (commonly /etc/smartdns/smartdns.conf) for bind-lines that enable DNS port listening (typically port 53)Affected if The service is configured to accept DNS queries from network sources
If smartdns version 45 is installed, running, and configured to accept DNS queries from the network, the environment is affected by CVE-2024-24199.
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 dataUpgrade to a patched version of smartdns that addresses the misaligned memory access in dns.c. If no patch is available, review the specific code path in dns.c where DNS query processing handles address allocation and add proper alignment handling for memory operations.
- Consultation2.0 h
- Implementation4.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-24199 — 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-2024-24199 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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- 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