CVE-2021-33640 Vulnerability Details

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CVE-2021-33640 Metadata Quick Info

CVE Published: 19/12/2022 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: openEuler | Vendor: openEuler | Product: openEuler 22.03 LTS
Status : PUBLISHED

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CVE-2021-33640 Description

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).

Metrics

CVSS Version: 3.1 | Base Score: 6.2 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

l➤ Exploitability Metrics:
    Attack Vector (AV)* LOCAL
    Attack Complexity (AC)* LOW
    Privileges Required (PR)* NONE
    User Interaction (UI)* NONE
    Scope (S)* UNCHANGED

l➤ Impact Metrics:
    Confidentiality Impact (C)* NONE
    Integrity Impact (I)* NONE
    Availability Impact (A)* HIGH

Weakness Enumeration (CWE)

CWE-ID: CWE-416
CWE Name: CWE-416 Use After Free
Source: openEuler

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).