FKIE_CVE-2019-12527
Vulnerability from fkie_nvd - Published: 2019-07-11 19:15 - Updated: 2026-06-17 02:14
Severity
Summary
An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| squid-cache | squid | * | |
| fedoraproject | fedora | 29 | |
| debian | debian_linux | 10.0 | |
| canonical | ubuntu_linux | 16.04 | |
| canonical | ubuntu_linux | 18.04 | |
| canonical | ubuntu_linux | 19.04 | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux_eus | 8.1 | |
| redhat | enterprise_linux_eus | 8.2 | |
| redhat | enterprise_linux_eus | 8.4 | |
| redhat | enterprise_linux_eus | 8.6 | |
| redhat | enterprise_linux_server_aus | 8.2 | |
| redhat | enterprise_linux_server_aus | 8.4 | |
| redhat | enterprise_linux_server_aus | 8.6 | |
| redhat | enterprise_linux_server_tus | 8.2 | |
| redhat | enterprise_linux_server_tus | 8.4 | |
| redhat | enterprise_linux_server_tus | 8.6 |
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}
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"id": "CVE-2019-12527",
"lastModified": "2026-06-17T02:14:49.787",
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"authentication": "NONE",
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"published": "2019-07-11T19:15:13.097",
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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.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- 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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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