Executive Summary

Informations
Name CVE-2021-31566 First vendor Publication 2022-08-23
Vendor Cve Last vendor Modification 2024-03-27

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required None User Interaction Required
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 :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31566

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-59 Improper Link Resolution Before File Access ('Link Following')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 27
Application 2
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1

Sources (Detail)

Source Url
MISC https://access.redhat.com/security/cve/CVE-2021-31566
https://bugzilla.redhat.com/show_bug.cgi?id=2024237
https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd61471...
https://github.com/libarchive/libarchive/issues/1566
MLIST https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html

Alert History

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Date Informations
2024-03-27 21:28:07
  • Multiple Updates
2022-12-03 17:27:27
  • Multiple Updates
2022-11-23 00:27:33
  • Multiple Updates
2022-08-26 21:27:13
  • Multiple Updates
2022-08-23 21:27:13
  • First insertion