CVE-2021-20193
Tar MemoryConsumption Vulnerability
Description
A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this vulnerability is to system availability.
INFO
Published Date :
March 26, 2021, 5:15 p.m.
Last Modified :
Nov. 21, 2024, 5:46 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-20193 has a 1 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-2021-20193.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1917565 | Issue Tracking Patch Third Party Advisory |
| https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 | Mailing List Patch Third Party Advisory |
| https://savannah.gnu.org/bugs/?59897 | Issue Tracking Patch Vendor Advisory |
| https://security.gentoo.org/glsa/202105-29 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1917565 | Issue Tracking Patch Third Party Advisory |
| https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 | Mailing List Patch Third Party Advisory |
| https://savannah.gnu.org/bugs/?59897 | Issue Tracking Patch Vendor Advisory |
| https://security.gentoo.org/glsa/202105-29 | 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).
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-2021-20193 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20193 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1917565 Added Reference https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 Added Reference https://savannah.gnu.org/bugs/?59897 Added Reference https://security.gentoo.org/glsa/202105-29 -
Modified Analysis by [email protected]
Oct. 24, 2024
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L -
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 Removed CWE Red Hat, Inc. CWE-125 -
Modified Analysis by [email protected]
Jun. 03, 2021
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202105-29 No Types Assigned https://security.gentoo.org/glsa/202105-29 Third Party Advisory Added CWE NIST CWE-401 Added CWE NIST CWE-125 -
CVE Modified by [email protected]
May. 26, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202105-29 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 31, 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://bugzilla.redhat.com/show_bug.cgi?id=1917565 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1917565 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 No Types Assigned https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 Mailing List, Patch, Third Party Advisory Changed Reference Type https://savannah.gnu.org/bugs/?59897 No Types Assigned https://savannah.gnu.org/bugs/?59897 Issue Tracking, Patch, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:gnu:tar:*:*:*:*:*:*:*:* versions up to (including) 1.33
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20193 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-2021-20193
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.03%
score
0.41245
percentile