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CVE-2023-3635— Okio GzipSource unhandled exception Denial of Service

Quick assessment

Affected
CVE-2023-3635
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.

Okio是Square开源的一个库。 square okio存在安全漏洞，该漏洞源于不处理解析格式错误的gzip缓冲区时可能引发的异常，可能会导致客户端拒绝服务。

CVSS 5.9 · Medium EPSS 1.25% · P69

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

I. Basic Information for CVE-2023-3635

Vulnerability Information
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Vulnerability Title
Okio GzipSource unhandled exception Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
GzipSource does not handle an exception that might be raised when parsing a malformed gzip buffer. This may lead to denial of service of the Okio client when handling a crafted GZIP archive, by using the GzipSource class.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
有符号至无符号转换错误
Source: CVE Program / CVE List V5
Vulnerability Title
Okio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Okio是Square开源的一个库。 square okio存在安全漏洞，该漏洞源于不处理解析格式错误的gzip缓冲区时可能引发的异常，可能会导致客户端拒绝服务。
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)

II. Public POCs for CVE-2023-3635

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III. Intelligence Information for CVE-2023-3635

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Patches & Fixes for CVE-2023-3635 (1)

Other References for CVE-2023-3635 (1)

IV. Related Vulnerabilities

Same weakness: CWE-195

V. Comments for CVE-2023-3635

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