CVE-2020-12049
"dbus File Descriptor Leak"
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.
INFO
Published Date :
June 8, 2020, 5:15 p.m.
Last Modified :
June 12, 2023, 7:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-12049 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-12049.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html | |
| 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://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 |
| https://usn.ubuntu.com/4398-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4398-2/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
asp-net-core csharp docker dockerfile javascript react webapi docker-compose
C# Dockerfile HTML JavaScript CSS
Map Vulnerabilities into Different Layers of the Container Image
Python
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-12049 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-12049 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 12, 2023
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 04, 2021
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202007-46 No Types Assigned https://security.gentoo.org/glsa/202007-46 Third Party Advisory Changed Reference Type https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak No Types Assigned https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak Exploit, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4398-1/ No Types Assigned https://usn.ubuntu.com/4398-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4398-2/ No Types Assigned https://usn.ubuntu.com/4398-2/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* -
CVE Modified by [email protected]
Feb. 22, 2021
Action Type Old Value New Value Added Reference https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak [No Types Assigned] -
CVE Modified by [email protected]
Jul. 27, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202007-46 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 29, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4398-2/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 29, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4398-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 11, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2020/06/04/3 No Types Assigned http://www.openwall.com/lists/oss-security/2020/06/04/3 Mailing List, Patch, Third Party Advisory Changed Reference Type https://gitlab.freedesktop.org/dbus/dbus/-/issues/294 No Types Assigned https://gitlab.freedesktop.org/dbus/dbus/-/issues/294 Exploit, Third Party Advisory Changed Reference Type https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30 No Types Assigned https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30 Third Party Advisory Changed Reference Type https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18 No Types Assigned https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18 Third Party Advisory Changed Reference Type https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16 No Types Assigned https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16 Third Party Advisory Added CWE NIST CWE-404 Added CPE Configuration OR *cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* versions from (including) 1.3.0 up to (excluding) 1.12.18
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-12049 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-12049
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile