5.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-24532

CVE-2023-24532: The ScalarMult and ScalarBaseMult methods of the P256 Curve may return an incorrect result if...

The ScalarMult and ScalarBaseMult methods of the P256 Curve may return an incorrect result if called with some specific unreduced scalars (a scalar larger than the order of the curve). This does not impact usages of crypto/ecdsa or crypto/ecdh.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2023-24532

CVE-2023-24532:

5.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

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Root Cause Analysis

The analysis is based on the information provided by the Go vulnerability database (pkg.go.dev/vuln/GO-2023-1621) and the NVD entry for CVE-2023-24532. These sources explicitly list the affected functions within the crypto/internal/nistec package. Direct patch analysis was not possible due to inaccessible Gerrit links and lack of direct commit hashes in the provided information. The vulnerability lies in the mathematical operations within these elliptic curve functions when provided with specific out-of-range inputs (unreduced scalars), leading to incorrect cryptographic results. The P256OrdInverse function is included as it's a common component in elliptic curve scalar multiplication and its incorrect handling of certain inputs could propagate to the main multiplication functions.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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