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    CVE-2021-33640

    After tar_close(), libtar.c releases the memory pointed to by pointer t. After tar_close() is called in the list() function, it continues to use pointer t: free_longlink_longname(t->th_buf) . As a result, the released memory is used (use-after-free).

    Published:Dec 9, 2022
    Last Modified:Apr 17, 2025
    EPS:Dec 19, 2022
    EPSS Score:0.00193
    CVSS Score:6.2

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Openatom
    Product
    Openeuler

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High