rhsa-2023_2453
Vulnerability from csaf_redhat
Published
2023-05-09 10:03
Modified
2024-09-13 21:11
Summary
Red Hat Security Advisory: libtpms security update

Notes

Topic
An update for libtpms is now available for Red Hat Enterprise Linux 9. 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 libtpms is a library providing Trusted Platform Module (TPM) functionality for virtual machines. Security Fix(es): * tpm: TCG TPM2.0 implementations vulnerable to memory corruption (CVE-2023-1017) * tpm2: TCG TPM2.0 implementations vulnerable to memory corruption (CVE-2023-1018) 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 9.2 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.


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      "text": "Moderate"
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    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
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        "text": "An update for libtpms is now available for Red Hat Enterprise Linux 9.\n\nRed 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.",
        "title": "Topic"
      },
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        "category": "general",
        "text": "The libtpms is a library providing Trusted Platform Module (TPM) functionality for virtual machines.\n\nSecurity Fix(es):\n\n* tpm: TCG TPM2.0 implementations vulnerable to memory corruption (CVE-2023-1017)\n\n* tpm2: TCG TPM2.0 implementations vulnerable to memory corruption (CVE-2023-1018)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes linked from the References section.",
        "title": "Details"
      },
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        "category": "legal_disclaimer",
        "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.",
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        "url": "https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_2453.json"
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    "title": "Red Hat Security Advisory: libtpms security update",
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          "text": "2149416"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds write vulnerability was found in the TPM 2.0\u0027s Module Library, which allows the writing of 2-byte data after the end of the TPM command. This flaw may lead to a denial of service or arbitrary code execution within the libtpms scope.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tpm: TCG TPM2.0 implementations vulnerable to memory corruption",
          "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": "Canonical URL",
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        },
        {
          "category": "external",
          "summary": "RHBZ#2149416",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2149416"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-1017",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-1017"
        },
        {
          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1017"
        },
        {
          "category": "external",
          "summary": "https://kb.cert.org/vuls/id/782720",
          "url": "https://kb.cert.org/vuls/id/782720"
        }
      ],
      "release_date": "2023-02-28T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "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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          "restart_required": {
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          },
          "url": "https://access.redhat.com/errata/RHSA-2023:2453"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tpm: TCG TPM2.0 implementations vulnerable to memory corruption"
    },
    {
      "cve": "CVE-2023-1018",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2022-11-29T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2149420"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bound read vulnerability was found in the TPM 2.0\u0027s Module Library, which allows the reading of 2-byte data after the end of the TPM command. This flaw allows an attacker to leak confidential data stored within the libtpms context.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tpm2: TCG TPM2.0 implementations vulnerable to memory corruption",
          "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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          "url": "https://access.redhat.com/security/cve/CVE-2023-1018"
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          "category": "external",
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        },
        {
          "category": "external",
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        },
        {
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      ],
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            "confidentialityImpact": "HIGH",
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      ],
      "title": "tpm2: TCG TPM2.0 implementations vulnerable to memory corruption"
    }
  ]
}


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