Security readout for executives and security teams
Plain-English summary
CVE-2017-11692 is a denial-of-service flaw in yaml-cpp. Applications using yaml-cpp 0.5.3 or earlier may crash when they parse a specially crafted YAML string. Business impact depends on whether untrusted users can submit YAML to a service or workflow.
Executive priority
Treat this as a targeted availability risk. It is not described as remote code execution, but affected internet-facing or automation-critical YAML parsers could be forced to exit, interrupting service or pipeline reliability.
Technical view
The issue is in Token& Scanner::peek in scanner.cpp. The CVE states yaml-cpp 0.5.3 and earlier can hit an assertion failure and exit when processing crafted YAML input, producing denial of service rather than data theft or code execution.
Likely exposure
Exposure is most likely in services, tools, CI pipelines, or configuration import features that parse attacker-controlled YAML using yaml-cpp 0.5.3 or earlier. Systems that only parse trusted local YAML have lower practical exposure.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVE description identifies a simple crafted input condition, so validation should focus on dependency presence and untrusted YAML parsing paths, not internet exposure alone.
Researcher notes
The source bundle has limited detail: no CVSS vector, CWE, patch commit, or affected CPEs are provided. The strongest claims are yaml-cpp 0.5.3-and-earlier impact, Scanner::peek involvement, assertion failure, and application exit.
Mitigation direction
- Inventory applications and packages that depend on yaml-cpp.
- Identify any yaml-cpp versions at 0.5.3 or earlier.
- Check upstream yaml-cpp and OS vendor advisories for fixed versions.
- Prioritize services that parse YAML from users, partners, or automation inputs.
- Add input isolation or crash containment where immediate upgrade is unavailable.
Validation and detection
- Review software bills of materials and package manifests for yaml-cpp.
- Confirm runtime library versions on production hosts and containers.
- Map application features that accept uploaded or remote YAML.
- Check crash logs for assertion failures in yaml-cpp scanner code.
- Verify vendor or distribution patches are applied in deployed builds.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-11692 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://github.com/jbeder/yaml-cpp/issues/519CVE reference · x_refsource_MISC
- GLSA-202007-14CVE reference · vendor-advisory, x_refsource_GENTOO
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.