CVE-2020-14363
X11 Integer Overflow Double-Free Vulnerability
Description
An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.
INFO
Published Date :
Sept. 11, 2020, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 3:17 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-14363 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-2020-14363.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363 | Issue Tracking Third Party Advisory |
| https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt | Third Party Advisory |
| https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh | Exploit Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ | |
| https://lists.x.org/archives/xorg-announce/2020-August/003056.html | Vendor Advisory |
| https://usn.ubuntu.com/4487-2/ | 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).
libx11_1.6.4 with proposed Fix poll_for_response race condition
libx11
C Makefile Shell Roff M4 C++ Perl
CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送
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-2020-14363 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-14363 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]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ Removed CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
Modified Analysis by [email protected]
Nov. 04, 2021
Action Type Old Value New Value Changed Reference Type https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt No Types Assigned https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt Third Party Advisory Changed Reference Type https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh No Types Assigned https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh Exploit, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 30, 2020
Action Type Old Value New Value Added Reference https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh [No Types Assigned] Added Reference https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt [No Types Assigned] -
CVE Modified by [email protected]
Sep. 25, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 17, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) 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://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363 Issue Tracking, Third Party Advisory Changed Reference Type https://lists.x.org/archives/xorg-announce/2020-August/003056.html No Types Assigned https://lists.x.org/archives/xorg-announce/2020-August/003056.html Vendor Advisory Changed Reference Type https://usn.ubuntu.com/4487-2/ No Types Assigned https://usn.ubuntu.com/4487-2/ Third Party Advisory Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:* versions up to (excluding) 1.6.12 -
CVE Modified by [email protected]
Sep. 15, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4487-2/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-14363 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-2020-14363
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