FKIE_CVE-2016-2572
Vulnerability from fkie_nvd - Published: 2016-02-27 05:59 - Updated: 2026-06-17 00:44
Severity
Summary
http.cc in Squid 4.x before 4.0.7 relies on the HTTP status code after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| squid-cache | squid | 4.0.1 | |
| squid-cache | squid | 4.0.2 | |
| squid-cache | squid | 4.0.3 | |
| squid-cache | squid | 4.0.4 | |
| squid-cache | squid | 4.0.5 | |
| squid-cache | squid | 4.0.6 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:squid-cache:squid:4.0.1:*:*:*:*:*:*:*",
"matchCriteriaId": "060FCBEA-DEAA-42FB-88C9-4B78136B172F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:4.0.2:*:*:*:*:*:*:*",
"matchCriteriaId": "74987102-8CA8-4120-B686-F18579A96A46",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:4.0.3:*:*:*:*:*:*:*",
"matchCriteriaId": "DA7828AA-48B6-44CD-8507-345A4F0A25BC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:4.0.4:*:*:*:*:*:*:*",
"matchCriteriaId": "6640F25F-CC8B-4B05-A97A-2186BD0B5ED8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:4.0.5:*:*:*:*:*:*:*",
"matchCriteriaId": "A037F780-6FC9-4130-908F-B5434FA0C7DE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:4.0.6:*:*:*:*:*:*:*",
"matchCriteriaId": "1DDEB455-F082-44E4-8CEA-019C0084BF05",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "http.cc in Squid 4.x before 4.0.7 relies on the HTTP status code after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response."
},
{
"lang": "es",
"value": "http.cc en Squid 4.x en versiones anteriores a 4.0.7 conf\u00eda en el c\u00f3digo de estado HTTP despu\u00e9s de un fallo de respuesta de an\u00e1lisis, lo que permite a servidores HTTP remotos provocar una denegaci\u00f3n de servicio (fallo de aserci\u00f3n y salida de demonio) a trav\u00e9s de una respuesta mal formada."
}
],
"id": "CVE-2016-2572",
"lastModified": "2026-06-17T00:44:19.513",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2016-02-27T05:59:06.797",
"references": [
{
"source": "cve@mitre.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"
},
{
"source": "cve@mitre.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"
},
{
"source": "cve@mitre.org",
"url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2600.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.openwall.com/lists/oss-security/2016/02/26/2"
},
{
"source": "cve@mitre.org",
"url": "http://www.securitytracker.com/id/1035101"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://www.squid-cache.org/Advisories/SQUID-2016_2.txt"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://www.squid-cache.org/Versions/v4/changesets/squid-4-14548.patch"
},
{
"source": "cve@mitre.org",
"url": "https://security.gentoo.org/glsa/201607-01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2600.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2016/02/26/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id/1035101"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.squid-cache.org/Advisories/SQUID-2016_2.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.squid-cache.org/Versions/v4/changesets/squid-4-14548.patch"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201607-01"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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