Vulnerability-Lookup

RHSA-2019:3905

Vulnerability from csaf_redhat - Published: 2019-11-18 16:23 - Updated: 2026-03-02 16:09

Summary

Red Hat Security Advisory: OpenShift Container Platform 3.11 atomic-openshift security update

Severity

Important

Notes

Topic: An update for atomic-openshift is now available for Red Hat OpenShift Container Platform 3.11. Red Hat Product Security has rated this update as having a security impact of Important. 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: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the atomic-openshift RPM package for Red Hat OpenShift Container Platform 3.11.154. Security Fix(es): * kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service (CVE-2019-11253) * kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks (CVE-2019-11251) 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.

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-2019-11251

The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Affected products

Fixed 24 products

Product	Version	Remediation
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-0:3.11.154-1.git.0.7a097ad.el7.src	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-clients-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-clients-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-clients-redistributable-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-docker-excluder-0:3.11.154-1.git.0.7a097ad.el7.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-excluder-0:3.11.154-1.git.0.7a097ad.el7.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hyperkube-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hyperkube-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hypershift-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hypershift-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-master-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-master-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-node-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-node-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-pod-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-pod-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-sdn-ovs-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-sdn-ovs-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-template-service-broker-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-template-service-broker-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-tests-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-tests-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2019-11253

A flaw was found kubernetes. The parsing of YAML manifests by the Kubernetes API server could lead to a denial-of-service attack leaving it vulnerable to an instance of a "billion laughs" attack. The highest threat from this vulnerability is to system availability.

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-400 - Uncontrolled Resource Consumption

Affected products

Fixed 24 products

Product	Version	Remediation
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-0:3.11.154-1.git.0.7a097ad.el7.src	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-clients-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-clients-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-clients-redistributable-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-docker-excluder-0:3.11.154-1.git.0.7a097ad.el7.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-excluder-0:3.11.154-1.git.0.7a097ad.el7.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hyperkube-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hyperkube-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hypershift-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-hypershift-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-master-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-master-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-node-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-node-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-pod-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-pod-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-sdn-ovs-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-sdn-ovs-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-template-service-broker-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-template-service-broker-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-tests-0:3.11.154-1.git.0.7a097ad.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOSE-3.11:atomic-openshift-tests-0:3.11.154-1.git.0.7a097ad.el7.x86_64	—	Vendor Fix fix

Threats

Impact Important

References

15 references

URL	Category
https://access.redhat.com/errata/RHSA-2019:3905	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1753495	external
https://bugzilla.redhat.com/show_bug.cgi?id=1757701	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2019-11251	self
https://bugzilla.redhat.com/show_bug.cgi?id=1753495	external
https://www.cve.org/CVERecord?id=CVE-2019-11251	external
https://nvd.nist.gov/vuln/detail/CVE-2019-11251	external
https://groups.google.com/forum/#!msg/kubernetes-…	external
https://access.redhat.com/security/cve/CVE-2019-11253	self
https://bugzilla.redhat.com/show_bug.cgi?id=1757701	external
https://www.cve.org/CVERecord?id=CVE-2019-11253	external
https://nvd.nist.gov/vuln/detail/CVE-2019-11253	external
https://www.stackrox.com/post/2019/09/protecting-…	external

JSON

To clipboard

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  "vulnerabilities": [
    {
      "cve": "CVE-2019-11251",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
      },
      "discovery_date": "2019-09-18T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1753495"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the version of Kubernetes(embedded in heketi) shipped with Red Hat Gluster Storage 3 as it does not include the symlink support for kubectl cp.",
          "title": "Statement"
        },
        {
          "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"
        }
      ],
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        },
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          "category": "external",
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        },
        {
          "category": "external",
          "summary": "https://groups.google.com/forum/#!msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJ",
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        }
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.0"
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        {
          "category": "impact",
          "details": "Moderate"
        }
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      "title": "kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks"
    },
    {
      "cve": "CVE-2019-11253",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
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        {
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          "text": "A flaw was found kubernetes. The parsing of YAML manifests by the Kubernetes API server could lead to a denial-of-service attack leaving it vulnerable to an instance of a \"billion laughs\" attack. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kubernetes: YAML parsing vulnerable to \"Billion Laughs\" attack, allowing for remote denial of service",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "For Red Hat OpenStack Platform, because kubernetes is not directly used in director-operator, the RHOSP Impact has been moved to Moderate.",
          "title": "Statement"
        },
        {
          "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"
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        },
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11253",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11253"
        },
        {
          "category": "external",
          "summary": "https://www.stackrox.com/post/2019/09/protecting-kubernetes-api-against-cve-2019-11253-billion-laughs-attack/",
          "url": "https://www.stackrox.com/post/2019/09/protecting-kubernetes-api-against-cve-2019-11253-billion-laughs-attack/"
        }
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      "title": "kubernetes: YAML parsing vulnerable to \"Billion Laughs\" attack, allowing for remote denial of service"
    }
  ]
}

CVE-2019-11253 (GCVE-0-2019-11253)

Vulnerability from cvelistv5 – Published: 2019-10-17 15:40 – Updated: 2024-09-16 23:21

Title

Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack

Summary

Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memory, potentially crashing and becoming unavailable. Prior to v1.14.0, default RBAC policy authorized anonymous users to submit requests that could trigger this vulnerability. Clusters upgraded from a version prior to v1.14.0 keep the more permissive policy by default for backwards compatibility.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-20 - Improper Input Validation

Assigner

kubernetes

References

6 references

URL	Tags
https://github.com/kubernetes/kubernetes/issues/83253	x_refsource_CONFIRM
https://groups.google.com/forum/#%21topic/kuberne…	mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2019:3239	vendor-advisoryx_refsource_REDHAT
https://security.netapp.com/advisory/ntap-2019103…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:3811	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3905	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
Kubernetes	Kubernetes	Affected: prior to 1.13.12 Affected: prior to 1.14.8 Affected: prior to 1.15.5 Affected: prior to 1.16.2 Affected: 1.1 Affected: 1.2 Affected: 1.3 Affected: 1.4 Affected: 1.5 Affected: 1.6 Affected: 1.7 Affected: 1.8 Affected: 1.9 Affected: 1.10 Affected: 1.11 Affected: 1.12

Date Public ?

2019-09-27 00:00

Credits

Rory McCune

Show details on NVD website

JSON

To clipboard

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            "value": "Exposure to requests from unauthenticated users can be mitigated by removing all write permissions from unauthenticated users, following instructions at https://github.com/kubernetes/kubernetes/issues/83253"
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
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    "cveId": "CVE-2019-11253",
    "datePublished": "2019-10-17T15:40:10.154Z",
    "dateReserved": "2019-04-17T00:00:00.000Z",
    "dateUpdated": "2024-09-16T23:21:47.959Z",
    "state": "PUBLISHED"
  },
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CVE-2019-11251 (GCVE-0-2019-11251)

Vulnerability from cvelistv5 – Published: 2020-02-03 15:35 – Updated: 2024-08-04 22:48

Title

kubectl cp allows symlink directory traversal

Summary

Severity ?

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

kubernetes

References

2 references

URL	Tags
https://github.com/kubernetes/kubernetes/issues/87773	x_refsource_CONFIRM
https://groups.google.com/d/msg/kubernetes-announ…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Kubernetes	Kubernetes	Affected: prior to 1.13.11 Affected: prior to 1.14.7 Affected: prior to 1.15.4 Affected: 1.1 Affected: 1.2 Affected: 1.3 Affected: 1.4 Affected: 1.5 Affected: 1.6 Affected: 1.7 Affected: 1.8 Affected: 1.9 Affected: 1.10 Affected: 1.11 Affected: 1.12

Credits

Erik Sjölund

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T22:48:09.005Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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            {
              "status": "affected",
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              "status": "affected",
              "version": "1.1"
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              "status": "affected",
              "version": "1.2"
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              "status": "affected",
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            },
            {
              "status": "affected",
              "version": "1.4"
            },
            {
              "status": "affected",
              "version": "1.5"
            },
            {
              "status": "affected",
              "version": "1.6"
            },
            {
              "status": "affected",
              "version": "1.7"
            },
            {
              "status": "affected",
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            {
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            {
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        }
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            "baseScore": 4.8,
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              "lang": "en",
              "type": "CWE"
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        "dateUpdated": "2020-02-03T15:35:13.000Z",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2019:3905

CVE-2019-11253 (GCVE-0-2019-11253)

CVE-2019-11251 (GCVE-0-2019-11251)

Tags

Sightings

Nomenclature