rhsa-2020_3118
Vulnerability from csaf_redhat
Published
2020-07-23 04:38
Modified
2024-11-05 22:29
Summary
Red Hat Security Advisory: samba security update

Notes

Topic
An update for samba is now available for Red Hat Gluster Storage 3.5 on Red Hat Enterprise Linux 7. 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
Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and various information. Security Fix(es): * samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results (CVE-2020-10730) 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. All users of Samba with Red Hat Gluster Storage are advised to upgrade to these updated packages.
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.


To clipboard 

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        "text": "An update for samba is now available for Red Hat Gluster Storage 3.5 on Red Hat Enterprise Linux 7.\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.",
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        "text": "Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and various information.\n\nSecurity Fix(es):\n\n* samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results (CVE-2020-10730)\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\nAll users of Samba with Red Hat Gluster Storage are advised to upgrade to these updated packages.",
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  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "the Samba project"
          ]
        },
        {
          "names": [
            "Andrew Bartlett"
          ],
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2020-10730",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "discovery_date": "2020-06-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1849489"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A NULL pointer dereference, or possible use-after-free flaw was found in the Samba AD LDAP server. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The version of samba shipped with Red Hat Gluster Storage 3 is built with a private copy of ldb which includes the vulnerable code. However, samba shipped with RHGS 3 is not supported for use as an AD DC and hence this issue has been rated as having a security impact of Low.",
          "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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          "summary": "Canonical URL",
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          "summary": "RHBZ#1849489",
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          "url": "https://www.cve.org/CVERecord?id=CVE-2020-10730"
        },
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10730"
        },
        {
          "category": "external",
          "summary": "https://www.samba.org/samba/security/CVE-2020-10730.html",
          "url": "https://www.samba.org/samba/security/CVE-2020-10730.html"
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      "release_date": "2020-07-02T00:00:00+00:00",
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          "date": "2020-07-23T04:38:43+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\n\nAfter installing this update, the smb service will be restarted automatically.\n\nFor details on migrating Samba/CTDB configuration files, refer to: \n\nhttps://access.redhat.com/solutions/4311261",
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        {
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            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 0.0,
            "baseSeverity": "NONE",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N",
            "version": "3.1"
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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