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I. Basic Information for CVE-2021-33644
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
openEuler 缓冲区错误漏洞
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。 开放原子开源基金会 openEuler 20.03-LTS-SP1,20.03-LTS-SP3和22.03-LTS版本存在安全漏洞,该漏洞源于攻击者如果提交一个头结构中大小为0的特制tar文件,可能能够触发对变量 gnu_longname的malloc(0)调用,从而导致越界。
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
-libtar <1.2.21 -
II. Public POCs for CVE-2021-33644
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III. Intelligence Information for CVE-2021-33644
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