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I. Basic Information for CVE-2021-43304
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Heap buffer overflow in Clickhouse's LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy<copy_amount>(op, ip, copy_end), don’t exceed the destination buffer’s limits.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Yandex ClickHouse 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yandex ClickHouse是俄罗斯Yandex公司的一套用于在线分析处理的开源列式数据库。 Yandex ClickHouse 存在缓冲区错误漏洞,目前暂无该漏洞信息,请随时关注CNNVD或厂商公告。
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
yandexclickhouse unspecified ~ 21.10.2.15-stable -
II. Public POCs for CVE-2021-43304
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III. Intelligence Information for CVE-2021-43304
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IV. Related Vulnerabilities
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