CVE-2020-35512
"Red Hat D-Bus Use-After-Free Vulnerability"
Description
A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors
INFO
Published Date :
Feb. 15, 2021, 5:15 p.m.
Last Modified :
Dec. 27, 2023, 4:36 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-35512 has a 2 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-2020-35512.
| URL | Resource |
|---|---|
| https://bugs.gentoo.org/755392 | Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1909101 | |
| https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128 | |
| https://security-tracker.debian.org/tracker/CVE-2020-35512 |
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
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-35512 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-35512 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.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 08, 2021
Action Type Old Value New Value Changed Description A use-after-free flaw was found in D-Bus 1.12.20 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1909101 [No Types Assigned] Added Reference https://security-tracker.debian.org/tracker/CVE-2020-35512 [No Types Assigned] Added Reference https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128 [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 23, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugs.gentoo.org/755392 No Types Assigned https://bugs.gentoo.org/755392 Issue Tracking, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration AND OR *cpe:2.3:a:d-bus_project:d-bus:1.12.20:*:*:*:*:*:*:* OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-35512 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-2020-35512
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