Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Local
0

CVE-2021-31566

Disclosure Date: August 23, 2022
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Description

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.

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • fedoraproject,
  • libarchive,
  • redhat

Products

  • codeready linux builder -,
  • enterprise linux 8.0,
  • enterprise linux eus 8.6,
  • enterprise linux for ibm z systems 8.0,
  • enterprise linux for ibm z systems eus 8.6,
  • enterprise linux for power little endian 8.0,
  • enterprise linux for power little endian eus 8.6,
  • enterprise linux server aus 8.6,
  • enterprise linux server for power little endian update services for sap solutions 8.6,
  • enterprise linux server tus 8.6,
  • fedora 35,
  • libarchive
Technical Analysis