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CVE-2021-35515— Apache Commons Compress 1.6 to 1.20 denial of service vulnerability

Quick assessment

Affected
Apache Software Foundation Apache Commons Compress
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Commons Compress是美国阿帕奇（Apache）基金会的一个用于处理压缩文件的库。 Apache Commons Compress存在安全漏洞，该漏洞源于当读取一个特殊制作的7Z归档文件时，构造解码器列表来解压缩条目可能会导致无限循环。

AI Predicted 5.3 Difficulty: Easy EPSS 11.57% · P96

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-35515

Vulnerability Information
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Vulnerability Title
Apache Commons Compress 1.6 to 1.20 denial of service vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry can result in an infinite loop. This could be used to mount a denial of service attack against services that use Compress' sevenz package.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
过度迭代
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Commons Compress 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Commons Compress是美国阿帕奇（Apache）基金会的一个用于处理压缩文件的库。 Apache Commons Compress存在安全漏洞，该漏洞源于当读取一个特殊制作的7Z归档文件时，构造解码器列表来解压缩条目可能会导致无限循环。
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
Apache Software Foundation Apache Commons Compress 1.6 ~ Apache Commons Compress* -

II. Public POCs for CVE-2021-35515

# POC Description Source Link Shenlong Link
1 None https://github.com/andikahilmy/CVE-2021-35515-commons-compress-vulnerable POC Details
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III. Intelligence Information for CVE-2021-35515

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Vendor Advisories for CVE-2021-35515 (5)

Mailing List Discussions for CVE-2021-35515 (15)

Other References for CVE-2021-35515 (1)

Same Patch Batch · Apache Software Foundation · 2021-07-13 · 4 CVEs total

CVE-2021-35516 Apache Commons Compress 1.6 to 1.20 denial of service vulnerability
CVE-2021-35517 Apache Commons Compress 1.1 to 1.20 denial of service vulnerability
CVE-2021-36090 Apache Commons Compress 1.0 to 1.20 denial of service vulnerability

IV. Related Vulnerabilities

Same product: Apache Commons Compress
Same vendor: Apache Software Foundation
Same weakness: CWE-834