CVE-2020-21913
ICU Use-After-Free Vulnerability
Description
International Components for Unicode (ICU-20850) v66.1 was discovered to contain a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp.
INFO
Published Date :
Sept. 20, 2021, 2:15 p.m.
Last Modified :
Nov. 29, 2021, 5:20 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-21913 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-21913
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2020-21913.
| URL | Resource |
|---|---|
| https://github.com/unicode-org/icu/pull/886 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html | Mailing List Third Party Advisory |
| https://unicode-org.atlassian.net/browse/ICU-20850 | Exploit Vendor Advisory |
| https://www.debian.org/security/2021/dsa-5014 | 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
SCSS Mustache
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-21913 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-21913 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 -
Modified Analysis by [email protected]
Nov. 29, 2021
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2021/dsa-5014 No Types Assigned https://www.debian.org/security/2021/dsa-5014 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 28, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-5014 [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 12, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:unicode:international_components_for_unicode:66.1:*:*:*:*:*:*:* OR *cpe:2.3:a:unicode:international_components_for_unicode:*:*:*:*:*:*:*:* versions up to (excluding) 66.1 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 12, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 04, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/unicode-org/icu/pull/886 No Types Assigned https://github.com/unicode-org/icu/pull/886 Patch, Third Party Advisory Changed Reference Type https://unicode-org.atlassian.net/browse/ICU-20850 No Types Assigned https://unicode-org.atlassian.net/browse/ICU-20850 Exploit, Vendor Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:unicode:international_components_for_unicode:66.1:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-21913 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-2020-21913
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.01%
score
0.42238
percentile