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-2021-41072 First vendor Publication 2021-09-14
Vendor Cve Last vendor Modification 2023-05-30

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Overall CVSS Score 8.1
Base Score 8.1 Environmental Score 8.1
impact SubScore 5.2 Temporal Score 8.1
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:P)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link and then contents under the same filename in a filesystem can cause unsquashfs to first create the symbolic link pointing outside the expected directory, and then the subsequent write operation will cause the unsquashfs process to write through the symbolic link elsewhere in the filesystem.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41072

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-59 Improper Link Resolution Before File Access ('Link Following')
50 % CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2021/dsa-4987
GENTOO https://security.gentoo.org/glsa/202305-29
MISC https://github.com/plougher/squashfs-tools/commit/e0485802ec72996c20026da3206...
https://github.com/plougher/squashfs-tools/issues/72#issuecomment-913833405
MLIST https://lists.debian.org/debian-lts-announce/2021/10/msg00017.html

Alert History

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Date Informations
2023-05-30 13:08:33
  • Multiple Updates
2022-07-08 02:03:32
  • Multiple Updates
2021-11-05 21:23:09
  • Multiple Updates
2021-10-21 09:23:10
  • Multiple Updates
2021-10-16 00:23:05
  • Multiple Updates
2021-09-25 00:23:01
  • Multiple Updates
2021-09-15 01:44:45
  • Multiple Updates
2021-09-14 17:22:48
  • Multiple Updates
2021-09-14 09:22:49
  • First insertion