rhsa-2019_0968
Vulnerability from csaf_redhat
Published
2019-05-07 04:21
Modified
2024-11-05 21:03
Summary
Red Hat Security Advisory: edk2 security update

Notes

Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8. 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
EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fix(es): * edk2: Buffer Overflow in BlockIo service for RAM disk (CVE-2018-12180) 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.


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        "category": "summary",
        "text": "An update for edk2 is now available for Red Hat Enterprise Linux 8.\n\nRed 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.\n\nSecurity Fix(es):\n\n* edk2: Buffer Overflow in BlockIo service for RAM disk (CVE-2018-12180)\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.",
        "title": "Details"
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        "text": "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.",
        "title": "Terms of Use"
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    "title": "Red Hat Security Advisory: edk2 security update",
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      "revision_history": [
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          "number": "1",
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      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2019-02-26T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1683372"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in edk2. When registering a RAM disk whose size is not a multiple of 512 bytes, the BlockIo protocol produced by the RamDiskDxe driver will incur memory read/write overrun. The memory overrun will happen when reading/writing the last block on the RAM disk. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: Buffer Overflow in BlockIo service for RAM disk",
          "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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          "AppStream-8.0.0.Z:edk2-aarch64-0:20180508gitee3198e672e2-9.el8_0.1.noarch",
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        ]
      },
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2018-12180"
        },
        {
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          "summary": "RHBZ#1683372",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1683372"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-12180",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-12180"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-12180",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12180"
        }
      ],
      "release_date": "2019-02-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-05-07T04:21:57+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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            "AppStream-8.0.0.Z:edk2-aarch64-0:20180508gitee3198e672e2-9.el8_0.1.noarch",
            "AppStream-8.0.0.Z:edk2-ovmf-0:20180508gitee3198e672e2-9.el8_0.1.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:0968"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.0"
          },
          "products": [
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            "AppStream-8.0.0.Z:edk2-aarch64-0:20180508gitee3198e672e2-9.el8_0.1.noarch",
            "AppStream-8.0.0.Z:edk2-ovmf-0:20180508gitee3198e672e2-9.el8_0.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "edk2: Buffer Overflow in BlockIo service for RAM disk"
    }
  ]
}


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