Executive Summary

Informations
Name CVE-2021-23177 First vendor Publication 2022-08-23
Vendor Cve Last vendor Modification 2022-12-03

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 while extracting an archive can lead to changing the access control list (ACL) of the target of the link. 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 change the ACL of a file on the system and gain more privileges.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23177

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 27
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-2021-23177
https://bugzilla.redhat.com/show_bug.cgi?id=2024245
https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831...
https://github.com/libarchive/libarchive/issues/1565
MLIST https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html

Alert History

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Date Informations
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