Security readout for executives and security teams
This is an older GnuTLS flaw where a specially crafted certificate with an overly long Distinguished Name can crash software using vulnerable library versions. The reported impact is denial of service, not confirmed data theft or code execution. Priority depends on whether internet-facing or partner-facing services still use affected GnuTLS builds. Exposure is most likely on systems running applications linked to vulnerable GnuTLS versions and processing remote certificates. This may include TLS clients, TLS servers requesting client certificates, proxies, mail services, or package-managed Linux services. The source metadata does not provide normalized CPEs or a complete product list. Handle during routine vulnerability remediation, but escalate if vulnerable GnuTLS is present on exposed authentication, TLS termination, mail, proxy, or integration systems. The known impact is service disruption, and the CVE is old, but unsupported assets can keep the risk alive. Mitigation focus: Upgrade GnuTLS to 3.3.17, 3.4.4, or a later supported release.; Apply relevant distribution security updates from Debian, Fedora, openSUSE, or vendor packages.; Check vendor advisories if packages use backported fixes with older version strings..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2015-6251 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=1251902CVE reference · x_refsource_CONFIRM
- https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.