RPK Server Signature Algorithm Selection Can Dereference a Missing Certificate
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| OpenSSL | OpenSSL | unaffected |
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Configuration 1 [-]
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No data.
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| Openssl | Openssl |
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| Source | ID | Title |
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Debian DSA |
DSA-6465-1 | openssl security update |
Ubuntu USN |
USN-8678-1 | OpenSSL vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 1.2% (1.167% probability within 30 days)
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| CPEs | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
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threat_severity
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threat_severity
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ssvc
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| First Time appeared |
Openssl
Openssl openssl |
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| Vendors & Products |
Openssl
Openssl openssl |
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cvssV3_1
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| Description | Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the private key (with no associated certificate) configured locally, a NULL pointer dereference may occur when the remote peer solicits raw public keys and also sends the typically omitted "signature_algorithms_cert" TLS extension. Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible. CWE: CWE-476: NULL Pointer Dereference Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA). When the private key is configured along with a matching certificate, the "signature_algorithms_cert" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key. Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below. FIPS impact: no No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module boundary. | |
| Title | RPK Server Signature Algorithm Selection Can Dereference a Missing Certificate | |
| Weaknesses | CWE-476 | |
| References |
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