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I. Basic Information for CVE-2025-67721
Vulnerability Information

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Vulnerability Title
Aircompressor's Snappy and LZ4 Java-based decompressor implementation can leak information from reused output buffer
Source: NVD (National Vulnerability Database)
Vulnerability Description
Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过发送数据的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Aircompressor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Aircompressor是airlift开源的一个将 Snappy、LZO、LZ4 和 Zstandard 压缩算法移植到 Java 的库。 Aircompressor 3.3及之前版本存在安全漏洞,该漏洞源于Snappy和LZ4解压缩器处理畸形数据不当,可能导致敏感数据泄露。
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
airliftaircompressor < 3.4 -
II. Public POCs for CVE-2025-67721
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III. Intelligence Information for CVE-2025-67721
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IV. Related Vulnerabilities
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