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CVE-2021-33645

Quick assessment

Affected
n/a libtar
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

openEuler是开放原子开源基金会的一款操作系统。 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th_read()函数在分配内存后没有释放变量t->th_buf.gnu_longlink，这可能会导致内存泄漏。

AI Predicted 5.3 Difficulty: Trivial EPSS 2.02% · P81

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-33645

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
openEuler 安全漏洞
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 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th_read()函数在分配内存后没有释放变量t->th_buf.gnu_longlink，这可能会导致内存泄漏。
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

Vendor Product Affected Versions CPE Subscribe
- libtar <1.2.21 -

II. Public POCs for CVE-2021-33645

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III. Intelligence Information for CVE-2021-33645

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Mailing List Discussions for CVE-2021-33645 (4)

Same Patch Batch · n/a · 2022-08-09 · 55 CVEs total

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Showing top 20 of 55 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: libtar
Same vendor: n/a
Same weakness: CWE-401