Vulnerability Monitor

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CVE-2021-23177


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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 13 products from libarchive, from fedoraproject, from redhat and 10 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2022-08-23T16:15:09.280

Last Modified

2024-11-21T05:51:19.970

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-59
  • Type: Secondary
    CWE-59

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application libarchive libarchive < 3.5.2 Yes
Operating System fedoraproject fedora 35 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux_eus 8.6 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems 8.0 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems_eus 8.6 Yes
Operating System redhat enterprise_linux_for_power_little_endian 8.0 Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.6 Yes
Operating System redhat enterprise_linux_server_aus 8.6 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.6 Yes
Operating System redhat enterprise_linux_server_tus 8.6 Yes
Application redhat codeready_linux_builder - Yes
Operating System redhat enterprise_linux 8.0 No
Operating System redhat enterprise_linux_eus 8.6 No
Operating System redhat enterprise_linux_for_ibm_z_systems 8.0 No
Operating System redhat enterprise_linux_for_ibm_z_systems_eus 8.6 No
Operating System redhat enterprise_linux_for_power_little_endian 8.0 No
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.6 No
Operating System debian debian_linux 10.0 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For libarchive's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.