RHSA-2019:3433

Vulnerability from csaf_redhat - Published: 2019-11-05 21:23 - Updated: 2026-02-25 17:33
Summary
Red Hat Security Advisory: go-toolset:rhel8 security, bug fix, and enhancement update
Severity
Moderate
Notes
Topic: An update for the go-toolset:rhel8 module is now available for Red Hat Enterprise Linux 8. 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: Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang. Security Fix(es): * golang: malformed hosts in URLs leads to authorization bypass (CVE-2019-14809) For 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.
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.
CVE-2019-14809

net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-939 - Improper Authorization in Handler for Custom URL Scheme
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2019:3433
Workaround This flaw has no mitigation for any affected golang package versions.
References
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          "title": "Vulnerability description"
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          "text": "golang: malformed hosts in URLs leads to authorization bypass",
          "title": "Vulnerability summary"
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        {
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          "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.",
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            "AppStream-8.1.0:go-toolset-0:1.12.8-1.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
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            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.s390x::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.src::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.aarch64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.ppc64le::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.s390x::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-docs-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8",
            "AppStream-8.1.0:golang-misc-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8",
            "AppStream-8.1.0:golang-race-0:1.12.8-2.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-src-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8",
            "AppStream-8.1.0:golang-tests-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "products": [
            "AppStream-8.1.0:go-toolset-0:1.12.8-1.module+el8.1.0+4089+be929cf8.aarch64::go-toolset:rhel8",
            "AppStream-8.1.0:go-toolset-0:1.12.8-1.module+el8.1.0+4089+be929cf8.ppc64le::go-toolset:rhel8",
            "AppStream-8.1.0:go-toolset-0:1.12.8-1.module+el8.1.0+4089+be929cf8.s390x::go-toolset:rhel8",
            "AppStream-8.1.0:go-toolset-0:1.12.8-1.module+el8.1.0+4089+be929cf8.src::go-toolset:rhel8",
            "AppStream-8.1.0:go-toolset-0:1.12.8-1.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.aarch64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.ppc64le::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.s390x::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.src::go-toolset:rhel8",
            "AppStream-8.1.0:golang-0:1.12.8-2.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.aarch64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.ppc64le::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.s390x::go-toolset:rhel8",
            "AppStream-8.1.0:golang-bin-0:1.12.8-2.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-docs-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8",
            "AppStream-8.1.0:golang-misc-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8",
            "AppStream-8.1.0:golang-race-0:1.12.8-2.module+el8.1.0+4089+be929cf8.x86_64::go-toolset:rhel8",
            "AppStream-8.1.0:golang-src-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8",
            "AppStream-8.1.0:golang-tests-0:1.12.8-2.module+el8.1.0+4089+be929cf8.noarch::go-toolset:rhel8"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang: malformed hosts in URLs leads to authorization bypass"
    }
  ]
}


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Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.