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I. Basic Information for CVE-2021-33640
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
openEuler 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openEuler是开放原子开源基金会的一款操作系统。 openEuler-22.03-LTS、openEuler-20.03-LTS-SP1和openEuler-20.03-LTS-SP3存在安全漏洞，该漏洞源于释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
openEuleropenEuler 22.03 LTS libtar 1.2.20-21 -
openEuleropenEuler 20.03 LTS SP1 libtar 1.2.20-19 -
openEuleropenEuler 20.03 LTS SP3 libtar 1.2.20-19 -
II. Public POCs for CVE-2021-33640
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III. Intelligence Information for CVE-2021-33640
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IV. Related Vulnerabilities
Same vendor: openEuler
Same weakness: CWE-416
V. Comments for CVE-2021-33640

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