alsa-2021:4058
Vulnerability from osv_almalinux
Published
2021-11-02 07:48
Modified
2021-11-03 08:35
Summary
Moderate: samba security update
Details

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.

Security Fix(es):

  • samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token (CVE-2021-20254)

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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "libsmbclient-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.13.3-5.el8_4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "libwbclient-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.13.3-5.el8_4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "samba-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.13.3-5.el8_4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.\n\nSecurity Fix(es):\n\n* samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token (CVE-2021-20254)\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.",
  "id": "ALSA-2021:4058",
  "modified": "2021-11-03T08:35:17Z",
  "published": "2021-11-02T07:48:59Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-20254"
    }
  ],
  "related": [
    "CVE-2021-20254"
  ],
  "summary": "Moderate: samba security update"
}


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Sightings

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  • 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.