{
  "cveId": "CVE-2019-18679",
  "url": "https://patchblox.com/security/cve/CVE-2019-18679",
  "summary": "CVE-2019-18679 is fixed in 8 products on 1 platform, first by squid 3.5.27-1ubuntu1.4, released November 26, 2019. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libecap: Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nThe...",
  "description": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nThe following packages have been upgraded to a later upstream version: squid (4.11). (BZ#1829467)\n\nSecurity Fix(es):\n\n* squid: Improper input validation in request allows for proxy manipulation (CVE-2019-12520)\n\n* squid: Off-by-one error in addStackElement allows for heap buffer overflow and crash (CVE-2019-12521)\n\n* squid: Improper input validation in URI processor (CVE-2019-12523)\n\n* squid: Improper access restriction in url_regex may lead to security bypass (CVE-2019-12524)\n\n* squid: Heap overflow issue in URN processing (CVE-2019-12526)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Out of bounds read in Proxy-Authorization header causes DoS (CVE-2019-12529)\n\n* squid: Denial of service in cachemgr.cgi (CVE-2019-12854)\n\n* squid: Buffer overflow in URI processor (CVE-2019-18676)\n\n* squid: Cross-Site Request Forgery issue in HTTP Request processing (CVE-2019-18677)\n\n* squid: HTTP Request Splitting issue in HTTP message processing (CVE-2019-18678)\n\n* squid: Information Disclosure issue in HTTP Digest Authentication (CVE-2019-18679)\n\n* squid: Mishandled HTML in the host parameter to cachemgr.cgi results in insecure behaviour (CVE-2019-18860)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: DoS in TLS handshake (CVE-2020-14058)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.",
  "published": "2019-11-26T09:15:00Z",
  "severity": "Moderate",
  "cvss": 7.5,
  "epss": 0.40982,
  "epssPercentile": 0.98668,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libecap",
      "release": "RHEL 8",
      "fixedVersion": "0:1.0.1-2.module\u002Bel8.1.0\u002B4044\u002B36416a77",
      "fix": "RHSA-2020:4743",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-4743",
      "released": "2020-11-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libecap",
      "release": "ol 8",
      "fixedVersion": "0:1.0.1-2.module\u002Bel8.3.0\u002B7819\u002Beb7d4ef6",
      "fix": "ELSA-2020-4743",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4743",
      "released": "2020-11-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libecap-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:1.0.1-2.module\u002Bel8.1.0\u002B4044\u002B36416a77",
      "fix": "RHSA-2020:4743",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-4743",
      "released": "2020-11-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libecap-devel",
      "release": "ol 8",
      "fixedVersion": "0:1.0.1-2.module\u002Bel8.3.0\u002B7819\u002Beb7d4ef6",
      "fix": "ELSA-2020-4743",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4743",
      "released": "2020-11-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "squid",
      "release": "RHEL 8",
      "fixedVersion": "7:4.11-3.module\u002Bel8.3.0\u002B7851\u002B7808b5f9",
      "fix": "RHSA-2020:4743",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-4743",
      "released": "2020-11-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "squid",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.5.27-1ubuntu1.4",
      "fix": "squid 3.5.27-1ubuntu1.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-squid-3.5.27-1ubuntu1.4",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.9-2ubuntu1",
      "fix": "squid 4.9-2ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-squid-4.9-2ubuntu1",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid",
      "release": "ol 8",
      "fixedVersion": "7:4.11-3.module\u002Bel8.3.0\u002B7819\u002Beb7d4ef6",
      "fix": "ELSA-2020-4743",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4743",
      "released": "2020-11-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "squid-cgi",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.5.27-1ubuntu1.4",
      "fix": "squid-cgi 3.5.27-1ubuntu1.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-squid-cgi-3.5.27-1ubuntu1.4",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid-cgi",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.9-2ubuntu1",
      "fix": "squid-cgi 4.9-2ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-squid-cgi-4.9-2ubuntu1",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.5.27-1ubuntu1.4",
      "fix": "squid-common 3.5.27-1ubuntu1.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-squid-common-3.5.27-1ubuntu1.4",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid-common",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.9-2ubuntu1",
      "fix": "squid-common 4.9-2ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-squid-common-4.9-2ubuntu1",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid-purge",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.5.27-1ubuntu1.4",
      "fix": "squid-purge 3.5.27-1ubuntu1.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-squid-purge-3.5.27-1ubuntu1.4",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid-purge",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.9-2ubuntu1",
      "fix": "squid-purge 4.9-2ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-squid-purge-4.9-2ubuntu1",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid3",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.5.27-1ubuntu1.4",
      "fix": "squid3 3.5.27-1ubuntu1.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-squid3-3.5.27-1ubuntu1.4",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squid3",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.9-2ubuntu1",
      "fix": "squid3 4.9-2ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-squid3-4.9-2ubuntu1",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squidclient",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.5.27-1ubuntu1.4",
      "fix": "squidclient 3.5.27-1ubuntu1.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-squidclient-3.5.27-1ubuntu1.4",
      "released": "2019-11-26T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "squidclient",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.9-2ubuntu1",
      "fix": "squidclient 4.9-2ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-squidclient-4.9-2ubuntu1",
      "released": "2019-11-26T09:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}