usn-4213-1
Vulnerability from osv_ubuntu
Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain URN requests. A remote attacker could possibly use this issue to bypass access checks and access restricted servers. This issue was only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523)
Jeriko One discovered that Squid incorrectly handed URN responses. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-12526)
Alex Rousskov discovered that Squid incorrectly handled certain strings. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 19.04. (CVE-2019-12854)
Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain input. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-18676)
Kristoffer Danielsson discovered that Squid incorrectly handled certain messages. This issue could result in traffic being redirected to origins it should not be delivered to. (CVE-2019-18677)
Régis Leroy discovered that Squid incorrectly handled certain HTTP request headers. A remote attacker could use this to smuggle HTTP requests and corrupt caches with arbitrary content. (CVE-2019-18678)
David Fifield discovered that Squid incorrectly handled HTTP Digest Authentication. A remote attacker could possibly use this issue to obtain pointer contents and bypass ASLR protections. (CVE-2019-18679)
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2019-12526",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-18677",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-18678",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-18679",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "squid",
"binary_version": "3.5.12-1ubuntu7.9"
},
{
"binary_name": "squid-cgi",
"binary_version": "3.5.12-1ubuntu7.9"
},
{
"binary_name": "squid-common",
"binary_version": "3.5.12-1ubuntu7.9"
},
{
"binary_name": "squid-purge",
"binary_version": "3.5.12-1ubuntu7.9"
},
{
"binary_name": "squid3",
"binary_version": "3.5.12-1ubuntu7.9"
},
{
"binary_name": "squidclient",
"binary_version": "3.5.12-1ubuntu7.9"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "squid3",
"purl": "pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.9?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.12-1ubuntu7.9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.3.8-1ubuntu16",
"3.3.8-1ubuntu17",
"3.5.12-1ubuntu6",
"3.5.12-1ubuntu7",
"3.5.12-1ubuntu7.1",
"3.5.12-1ubuntu7.2",
"3.5.12-1ubuntu7.3",
"3.5.12-1ubuntu7.4",
"3.5.12-1ubuntu7.5",
"3.5.12-1ubuntu7.6",
"3.5.12-1ubuntu7.7",
"3.5.12-1ubuntu7.8"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2019-12526",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-18677",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-18678",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-18679",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "squid",
"binary_version": "3.5.27-1ubuntu1.4"
},
{
"binary_name": "squid-cgi",
"binary_version": "3.5.27-1ubuntu1.4"
},
{
"binary_name": "squid-common",
"binary_version": "3.5.27-1ubuntu1.4"
},
{
"binary_name": "squid-purge",
"binary_version": "3.5.27-1ubuntu1.4"
},
{
"binary_name": "squid3",
"binary_version": "3.5.27-1ubuntu1.4"
},
{
"binary_name": "squidclient",
"binary_version": "3.5.27-1ubuntu1.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "squid3",
"purl": "pkg:deb/ubuntu/squid3@3.5.27-1ubuntu1.4?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.27-1ubuntu1.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.5.23-5ubuntu1",
"3.5.23-5ubuntu2",
"3.5.27-1ubuntu1",
"3.5.27-1ubuntu1.1",
"3.5.27-1ubuntu1.2",
"3.5.27-1ubuntu1.3"
]
}
],
"aliases": [],
"details": "Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly\nhandled certain URN requests. A remote attacker could possibly use this\nissue to bypass access checks and access restricted servers. This issue was\nonly addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523)\n\nJeriko One discovered that Squid incorrectly handed URN responses. A remote\nattacker could use this issue to cause Squid to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2019-12526)\n\nAlex Rousskov discovered that Squid incorrectly handled certain strings. A\nremote attacker could possibly use this issue to cause Squid to crash,\nresulting in a denial of service. This issue only affected Ubuntu 19.04.\n(CVE-2019-12854)\n\nJeriko One and Kristoffer Danielsson discovered that Squid incorrectly\nhandled certain input. A remote attacker could use this issue to cause\nSquid to crash, resulting in a denial of service, or possibly execute\narbitrary code. This issue was only addressed in Ubuntu 19.04 and Ubuntu\n19.10. (CVE-2019-18676)\n\nKristoffer Danielsson discovered that Squid incorrectly handled certain\nmessages. This issue could result in traffic being redirected to origins\nit should not be delivered to. (CVE-2019-18677)\n\nR\u00e9gis Leroy discovered that Squid incorrectly handled certain HTTP\nrequest headers. A remote attacker could use this to smuggle HTTP requests\nand corrupt caches with arbitrary content. (CVE-2019-18678)\n\nDavid Fifield discovered that Squid incorrectly handled HTTP Digest\nAuthentication. A remote attacker could possibly use this issue to obtain\npointer contents and bypass ASLR protections. (CVE-2019-18679)\n",
"id": "USN-4213-1",
"modified": "2026-02-10T04:41:43Z",
"published": "2019-12-04T17:28:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4213-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-12523"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-12526"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-12854"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-18676"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-18677"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-18678"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-18679"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "squid, squid3 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2019-12523",
"UBUNTU-CVE-2019-12526",
"UBUNTU-CVE-2019-12854",
"UBUNTU-CVE-2019-18676",
"UBUNTU-CVE-2019-18677",
"UBUNTU-CVE-2019-18678",
"UBUNTU-CVE-2019-18679"
]
}
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.