CVE-2020-12049

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
Description
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.
Overview
  • CVE ID
  • CVE-2020-12049
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-06-08T17:15:09
  • Last Modified Date
  • 2021-03-04T21:17:19
Weakness Enumerations
CWE URL
CWE-404 http://cwe.mitre.org/data/definitions/404.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* 1 OR 1.3.0 1.12.18
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://www.openwall.com/lists/oss-security/2020/06/04/3 Mailing List Patch Third Party Advisory
https://gitlab.freedesktop.org/dbus/dbus/-/issues/294 Exploit Third Party Advisory
https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30 Third Party Advisory
https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18 Third Party Advisory
https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16 Third Party Advisory
https://usn.ubuntu.com/4398-1/ Third Party Advisory
https://usn.ubuntu.com/4398-2/ Third Party Advisory
https://security.gentoo.org/glsa/202007-46 Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-12049
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12049
History
Created Old Value New Value Data Type Notes
2022-05-10 07:20:56 Added to TrackCVE
2022-12-04 17:31:52 2020-06-08T17:15Z 2020-06-08T17:15:09 CVE Published Date updated
2022-12-04 17:31:52 2021-03-04T21:17:19 CVE Modified Date updated
2022-12-04 17:31:52 Analyzed Vulnerability Status updated