rhsa-2016_1538
Vulnerability from csaf_redhat
Published
2016-08-02 18:20
Modified
2024-11-05 19:24
Summary
Red Hat Security Advisory: golang security, bug fix, and enhancement update

Notes

Topic
An update for golang is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The golang packages provide the Go programming language compiler. The following packages have been upgraded to a newer upstream version: golang (1.6.3). (BZ#1346331) Security Fix(es): * An input-validation flaw was discovered in the Go programming language built in CGI implementation, which set the environment variable "HTTP_PROXY" using the incoming "Proxy" HTTP-request header. The environment variable "HTTP_PROXY" is used by numerous web clients, including Go's net/http package, to specify a proxy server to use for HTTP and, in some cases, HTTPS requests. This meant that when a CGI-based web application ran, an attacker could specify a proxy server which the application then used for subsequent outgoing requests, allowing a man-in-the-middle attack. (CVE-2016-5386) Red Hat would like to thank Scott Geary (VendHQ) for reporting this issue.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


To clipboard 

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          "url": "https://access.redhat.com/errata/RHSA-2016:1538"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
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            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang: HTTP request smuggling in net/http library"
    },
    {
      "cve": "CVE-2015-5741",
      "cwe": {
        "id": "CWE-444",
        "name": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)"
      },
      "discovery_date": "2015-07-29T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1250352"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "HTTP-request vulnerabilities have been found in the Golang net/http and net/textproto libraries. Request headers with double Content-Length fields do not generate a 400 error (the second field is ignored), and invalid fields are parsed as valid (for example, \"Content Length:\" with a space in the middle is accepted).  A non-authenticated attacker could exploit these flaws to bypass security controls, perform web-cache poisoning, or alter the request/response map (denial of service).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang: HTTP request smuggling in net/http library",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2015-5741"
        },
        {
          "category": "external",
          "summary": "RHBZ#1250352",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1250352"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2015-5741",
          "url": "https://www.cve.org/CVERecord?id=CVE-2015-5741"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-5741",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5741"
        }
      ],
      "release_date": "2015-07-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-08-02T18:20:29+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-docs-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-src-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:1538"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.src",
            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-docs-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-src-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang: HTTP request smuggling in net/http library"
    },
    {
      "cve": "CVE-2016-3959",
      "cwe": {
        "id": "CWE-835",
        "name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
      },
      "discovery_date": "2016-04-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1324343"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A denial of service vulnerability was found in Go\u0027s verification of DSA public keys.  An attacker could provide a crafted key to HTTPS client or SSH server libraries which would cause the application to enter an infinite loop.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang: infinite loop in several big integer routines",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.src",
          "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.x86_64",
          "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
          "7Server-optional-7.2.Z:golang-docs-0:1.6.3-1.el7_2.1.noarch",
          "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
          "7Server-optional-7.2.Z:golang-src-0:1.6.3-1.el7_2.1.noarch",
          "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-3959"
        },
        {
          "category": "external",
          "summary": "RHBZ#1324343",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1324343"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-3959",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-3959"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-3959",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3959"
        }
      ],
      "release_date": "2016-04-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-08-02T18:20:29+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.src",
            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-docs-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-src-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:1538"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.0"
          },
          "products": [
            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.src",
            "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
            "7Server-optional-7.2.Z:golang-docs-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-src-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang: infinite loop in several big integer routines"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Scott Geary"
          ],
          "organization": "VendHQ"
        }
      ],
      "cve": "CVE-2016-5386",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2016-07-04T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1353798"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An input-validation flaw was discovered in the Go programming language built in CGI implementation, which set the environment variable \"HTTP_PROXY\" using the incoming \"Proxy\" HTTP-request header. The environment variable \"HTTP_PROXY\" is used by numerous web clients, including Go\u0027s net/http package, to specify a proxy server to use for HTTP and, in some cases, HTTPS requests. This meant that when a CGI-based web application ran, an attacker could specify a proxy server which the application then used for subsequent outgoing requests, allowing a man-in-the-middle attack.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Go: sets environmental variable  based on user supplied Proxy request header",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "7Server-optional-7.2.Z:golang-0:1.6.3-1.el7_2.1.x86_64",
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-5386"
        },
        {
          "category": "external",
          "summary": "RHBZ#1353798",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1353798"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-5386",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-5386"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-5386",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5386"
        }
      ],
      "release_date": "2016-07-18T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-08-02T18:20:29+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
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            "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-src-0:1.6.3-1.el7_2.1.noarch",
            "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:1538"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.0"
          },
          "products": [
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            "7Server-optional-7.2.Z:golang-bin-0:1.6.3-1.el7_2.1.x86_64",
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            "7Server-optional-7.2.Z:golang-misc-0:1.6.3-1.el7_2.1.noarch",
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            "7Server-optional-7.2.Z:golang-tests-0:1.6.3-1.el7_2.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Go: sets environmental variable  based on user supplied Proxy request header"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.