CVE-2024-22340
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 · uneditedIBM Common Cryptographic Architecture 7.0.0 through 7.5.51 could allow a remote attacker to obtain sensitive information during the creation of ECDSA signatures to perform a timing-based attack.
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 confidenceIBM Common Cryptographic Architecture versions 7.0.0 through 7.5.51 contains a timing-based side-channel vulnerability during ECDSA signature generation. An attacker with sufficient network proximity and ability to measure signature creation timing could potentially recover sensitive cryptographic material, such as the ECDSA private key or nonce, by analyzing variations in signature computation time.
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>= 7.0.0, < 7.5.52CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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.
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Identify IBM CCA installation and versionLocate the IBM Common Cryptographic Architecture installation directory or package, then retrieve the version number using vendor-provided commands or by inspecting version files (such as a VERSION file, manifest, or using 'ccaversion' or similar utility if available).Affected if The installed version is 7.0.0 through 7.5.51 (inclusive)
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Confirm ECDSA operations are in useReview application logs, cryptographic configuration, or system audit logs to determine whether ECDSA signature generation is being performed. Inspect any cryptographic policy or key management configurations that specify ECDSA as the signature algorithm.Affected if ECDSA-based signing operations are configured or actively occurring in the environment
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Check for vulnerable code path exposureIdentify whether any applications or services are calling the IBM CCA cryptographic APIs for ECDSA signing, particularly in contexts where network timing measurements could be observed by an attacker.Affected if Systems performing ECDSA signature generation through IBM CCA are network-accessible or observable by untrusted parties
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Assess network accessibility of ECDSA operationsReview network topology and access controls around systems performing ECDSA operations via IBM CCA. Determine if remote attackers could measure signature creation timing through network proximity.Affected if ECDSA operations are performed on network-accessible systems where timing measurements could be captured by attackers with sufficient network proximity
A system is affected if it runs IBM Common Cryptographic Architecture version 7.0.0 through 7.5.51 AND performs ECDSA signature operations that could be observed by an attacker with network timing measurement capability.
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.
dbcve · scoped7.5.52
Update to a patched version of IBM Common Cryptographic Architecture beyond 7.5.51, or apply vendor-supplied patches. If patching is not immediately feasible, monitor for anomalous access patterns and consider compensating controls around systems performing ECDSA operations.
7.5.52 or later
- Upgrade IBM Common Cryptographic Architecture from any version 7.0.0-7.5.51 to version 7.5.52 or later
- Verify the upgrade was successful by checking the version number
- Test that ECDSA signature operations continue to function correctly after the upgrade
- Monitor for any unusual timing behavior in signature operations
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-22340 — 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-2024-22340 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
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