Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-3520 First vendor Publication 2021-06-02
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3520

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1
Application 1
Application 1
Application 1
Application 1
Application 2

Sources (Detail)

https://bugzilla.redhat.com/show_bug.cgi?id=1954559
https://security.netapp.com/advisory/ntap-20211104-0005/
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
Source Url

Alert History

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Date Informations
2025-01-01 13:30:09
  • Multiple Updates
2024-11-28 13:58:16
  • Multiple Updates
2024-06-07 00:27:33
  • Multiple Updates
2024-03-27 21:28:13
  • Multiple Updates
2023-11-07 21:34:50
  • Multiple Updates
2023-02-13 05:27:36
  • Multiple Updates
2023-02-03 05:27:40
  • Multiple Updates
2022-09-03 09:27:32
  • Multiple Updates
2022-04-20 09:23:19
  • Multiple Updates
2021-11-29 05:23:07
  • Multiple Updates
2021-11-18 05:23:11
  • Multiple Updates
2021-11-10 09:23:30
  • Multiple Updates
2021-11-04 12:48:51
  • Multiple Updates
2021-10-20 17:23:14
  • Multiple Updates
2021-08-05 01:43:15
  • Multiple Updates
2021-07-21 05:22:59
  • Multiple Updates
2021-06-12 00:22:55
  • Multiple Updates
2021-06-02 17:22:45
  • First insertion