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CVE-2020-12049 (GCVE-0-2020-12049)

Vulnerability from cvelistv5 – Published: 2020-06-08 00:00 – Updated: 2024-08-04 11:48
VLAI
Summary
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T16:54:53+00:00",
      "cve": "CVE-2020-12049",
      "id": "CVE-2020-12049",
      "initial_release_date": "2020-06-04T00:00:00+00:00",
      "product_status:fixed": "606",
      "product_status:known_not_affected": "7",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "dbus: denial of service via file descriptor leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-12049.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-13T00:06:17Z",
      "cve": "CVE-2020-12049",
      "id": "CVE-2020-12049",
      "initial_release_date": "2023-02-15T03:59:24Z",
      "product_status:known_affected": "358",
      "product_status:known_not_affected": "16",
      "product_status:recommended": "467",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-12049",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-12049.json",
      "version": "48"
    }
  }
}



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  • 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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.