FKIE_CVE-2008-4989
Vulnerability from fkie_nvd - Published: 2008-11-13 01:00 - Updated: 2026-06-16 22:58
Severity
Summary
The _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls in GnuTLS before 2.6.1 trusts certificate chains in which the last certificate is an arbitrary trusted, self-signed certificate, which allows man-in-the-middle attackers to insert a spoofed certificate for any Distinguished Name (DN).
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| gnu | gnutls | * | |
| fedoraproject | fedora | 8 | |
| fedoraproject | fedora | 9 | |
| canonical | ubuntu_linux | 6.06 | |
| canonical | ubuntu_linux | 7.10 | |
| canonical | ubuntu_linux | 8.04 | |
| canonical | ubuntu_linux | 8.10 | |
| debian | debian_linux | 4.0 | |
| opensuse | opensuse | * | |
| suse | linux_enterprise | 10.0 | |
| suse | linux_enterprise | 11.0 | |
| suse | linux_enterprise_server | 10 | |
| suse | linux_enterprise_server | 11 |
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"value": "La funci\u00f3n _gnutls_x509_verify_certificate en lib/x509/verify.c en libgnutls en GnuTLS antes de v2.6.1 conf\u00eda en las cadenas de certificado en las que el \u00faltimo certificado es un certificado de confianza arbitraria, auto-firmado, lo que permite a atacantes de tipo \"hombre en el medio\" (man-in-the-middle) insertar un certificado falso para cualquier Distinguished Name(DN)."
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"lastModified": "2026-06-16T22:58:53.890",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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