USN-2995-1 (UBUNTU-CVE-2016-3947)
Vulnerability from osv_ubuntu – Published: 2016-06-09 17:10 – Updated: 2026-02-10 04:41 – Source website
VLAI
Summary
squid3 vulnerabilities
Details
Yuriy M. Kaminskiy discovered that the Squid pinger utility incorrectly handled certain ICMPv6 packets. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly cause Squid to leak information into log files. (CVE-2016-3947)
Yuriy M. Kaminskiy discovered that the Squid cachemgr.cgi tool incorrectly handled certain crafted data. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-4051)
It was discovered that Squid incorrectly handled certain Edge Side Includes (ESI) responses. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-4052, CVE-2016-4053, CVE-2016-4054)
Jianjun Chen discovered that Squid did not correctly ignore the Host header when absolute-URI is provided. A remote attacker could possibly use this issue to conduct cache-poisoning attacks. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-4553)
Jianjun Chen discovered that Squid incorrectly handled certain HTTP Host headers. A remote attacker could possibly use this issue to conduct cache-poisoning attacks. (CVE-2016-4554)
It was discovered that Squid incorrectly handled certain Edge Side Includes (ESI) responses. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2016-4555, CVE-2016-4556)
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2016-3947",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4051",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4052",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4053",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4054",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4553",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4554",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4555",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4556",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "squid",
"binary_version": "3.3.8-1ubuntu6.8"
},
{
"binary_name": "squid-cgi",
"binary_version": "3.3.8-1ubuntu6.8"
},
{
"binary_name": "squid-purge",
"binary_version": "3.3.8-1ubuntu6.8"
},
{
"binary_name": "squid3",
"binary_version": "3.3.8-1ubuntu6.8"
},
{
"binary_name": "squid3-common",
"binary_version": "3.3.8-1ubuntu6.8"
},
{
"binary_name": "squidclient",
"binary_version": "3.3.8-1ubuntu6.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "squid3",
"purl": "pkg:deb/ubuntu/squid3@3.3.8-1ubuntu6.8?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.8-1ubuntu6.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.3.8-1ubuntu3",
"3.3.8-1ubuntu4",
"3.3.8-1ubuntu5",
"3.3.8-1ubuntu6",
"3.3.8-1ubuntu6.1",
"3.3.8-1ubuntu6.2",
"3.3.8-1ubuntu6.3",
"3.3.8-1ubuntu6.4",
"3.3.8-1ubuntu6.6"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2016-3947",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4051",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4052",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4053",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4054",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4553",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4554",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4555",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4556",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "squid",
"binary_version": "3.5.12-1ubuntu7.2"
},
{
"binary_name": "squid-cgi",
"binary_version": "3.5.12-1ubuntu7.2"
},
{
"binary_name": "squid-common",
"binary_version": "3.5.12-1ubuntu7.2"
},
{
"binary_name": "squid-purge",
"binary_version": "3.5.12-1ubuntu7.2"
},
{
"binary_name": "squid3",
"binary_version": "3.5.12-1ubuntu7.2"
},
{
"binary_name": "squidclient",
"binary_version": "3.5.12-1ubuntu7.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "squid3",
"purl": "pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.2?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.12-1ubuntu7.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.3.8-1ubuntu16",
"3.3.8-1ubuntu17",
"3.5.12-1ubuntu6",
"3.5.12-1ubuntu7",
"3.5.12-1ubuntu7.1"
]
}
],
"aliases": [],
"details": "Yuriy M. Kaminskiy discovered that the Squid pinger utility incorrectly\nhandled certain ICMPv6 packets. A remote attacker could use this issue to\ncause Squid to crash, resulting in a denial of service, or possibly cause\nSquid to leak information into log files. (CVE-2016-3947)\n\nYuriy M. Kaminskiy discovered that the Squid cachemgr.cgi tool incorrectly\nhandled certain crafted data. A remote attacker could use this issue to\ncause Squid to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-4051)\n\nIt was discovered that Squid incorrectly handled certain Edge Side Includes\n(ESI) responses. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-4052, CVE-2016-4053, CVE-2016-4054)\n\nJianjun Chen discovered that Squid did not correctly ignore the Host header\nwhen absolute-URI is provided. A remote attacker could possibly use this\nissue to conduct cache-poisoning attacks. This issue only affected Ubuntu\n14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-4553)\n\nJianjun Chen discovered that Squid incorrectly handled certain HTTP Host\nheaders. A remote attacker could possibly use this issue to conduct\ncache-poisoning attacks. (CVE-2016-4554)\n\nIt was discovered that Squid incorrectly handled certain Edge Side Includes\n(ESI) responses. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service. (CVE-2016-4555,\nCVE-2016-4556)\n",
"id": "USN-2995-1",
"modified": "2026-02-10T04:41:00Z",
"published": "2016-06-09T17:10:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-2995-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-3947"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4051"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4052"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4053"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4054"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4553"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4554"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4555"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4556"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "squid3 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2016-3947",
"UBUNTU-CVE-2016-4051",
"UBUNTU-CVE-2016-4052",
"UBUNTU-CVE-2016-4053",
"UBUNTU-CVE-2016-4054",
"UBUNTU-CVE-2016-4553",
"UBUNTU-CVE-2016-4554",
"UBUNTU-CVE-2016-4555",
"UBUNTU-CVE-2016-4556"
]
}
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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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