rhsa-2020_2116
Vulnerability from csaf_redhat
Published
2020-05-12 19:52
Modified
2024-11-05 22:13
Summary
Red Hat Security Advisory: buildah security and bug fix update

Notes

Topic
An update for buildah is now available for Red Hat Enterprise Linux 7 Extras. 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
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * buildah: Crafted input tar file may lead to local file overwrite during image build process (CVE-2020-10696) * containers/image: Container images read entire image manifest into memory (CVE-2020-1702) 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. Bug Fix(es): * buildah is not expanding env vars in file paths (BZ#1822031)
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.


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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
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          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
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      "cve": "CVE-2020-1702",
      "cwe": {
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        "name": "Uncontrolled Resource Consumption"
      },
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          "text": "1792796"
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      "notes": [
        {
          "category": "description",
          "text": "A malicious container image can consume an unbounded amount of memory when being pulled to a container runtime host, such as Red Hat Enterprise Linux using podman, or OpenShift Container Platform. An attacker can use this flaw to trick a user, with privileges to pull container images, into crashing the process responsible for pulling the image.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "containers/image: Container images read entire image manifest into memory",
          "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"
        }
      ],
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1702",
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          "date": "2020-05-12T19:52:02+00:00",
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            "userInteraction": "REQUIRED",
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          "details": "Low"
        }
      ],
      "title": "containers/image: Container images read entire image manifest into memory"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Erik Sj\u00f6lund"
          ]
        }
      ],
      "cve": "CVE-2020-10696",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "discovery_date": "2020-03-26T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1817651"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A path traversal flaw was found in Buildah. This flaw allows an attacker to trick a user into building a malicious container image hosted on an HTTP(s) server and then write files to the user\u0027s system anywhere that the user has permissions.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "buildah: Crafted input tar file may lead to local file overwrite during image build process",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "While OpenShift Container Platform does include the vulnerable buildah code, it doesn\u0027t make use of the vulnerable function. Podman is also included in OpenShift Container Platform, but it isn\u0027t used to perform a build, so it has been given a low impact rating.\n\nOpenShift Container Platform 3.11 now used podman from the RHEL Extra repository, and not the podman package shipped in the OpenShift 3.11 RPM repository. This issue is fixed in podman in RHEL Extras so we won\u0027t fix the podman package shipped in the OpenShift 3.11 RPM repository.",
          "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"
        }
      ],
      "product_status": {
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-10696"
        },
        {
          "category": "external",
          "summary": "RHBZ#1817651",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1817651"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-10696",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-10696"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10696",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10696"
        }
      ],
      "release_date": "2020-03-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-05-12T19:52:02+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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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "buildah: Crafted input tar file may lead to local file overwrite during image build process"
    }
  ]
}


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