Out-of-bounds Write via an Unbounded RSA Modulus in NetX Secure X.509
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Eclipse Foundation | Eclipse ThreadX - NetX Duo | unaffected |
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No data.
No data.
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| Eclipse | Threadx Netx Duo |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.246% probability within 30 days)
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| First Time appeared |
Eclipse
Eclipse threadx Netx Duo |
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| Vendors & Products |
Eclipse
Eclipse threadx Netx Duo |
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| Metrics |
ssvc
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| Description | The X.509 parser in NetX Secure accepts an RSA public key of any size, but every signature-verification path decrypts into fixed-size buffers dimensioned for the `NX_CRYPTO_MAX_RSA_MODULUS_SIZE` default of 4096 bits. A certificate carrying a larger modulus drives an out-of-bounds write past a file-scope static during ordinary certificate-chain verification. It is reachable pre-authentication. The issuer used for the crypto operation is looked up in the remote, peer-supplied store before the trusted store, so the attacker supplies the oversized key themselves as an intermediate in the chain they present. It triggers on a TLS or DTLS client verifying a malicious server's chain, and on a server performing client-certificate authentication. | |
| Title | Out-of-bounds Write via an Unbounded RSA Modulus in NetX Secure X.509 | |
| Weaknesses | CWE-1284 CWE-787 |
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| References |
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| Metrics |
cvssV4_0
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