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CVE-2023-29403— Unsafe behavior in setuid/setgid binaries in runtime

Quick assessment

Affected
Go standard library runtime
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.

Google Go是美国谷歌（Google）公司的一种静态强类型、编译型、并发型，并具有垃圾回收功能的编程语言。 Google Go 1.19.10 之前版本、 1.20.0-0到1.20.5版本存在安全漏洞。攻击者利用该漏洞可以提升权限，从而读取或写入任意内容。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.43% · P35
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I. Basic Information for CVE-2023-29403

Vulnerability Information
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Vulnerability Title
Unsafe behavior in setuid/setgid binaries in runtime
Source: CVE Program / CVE List V5
Vulnerability Description
On Unix platforms, the Go runtime does not behave differently when a binary is run with the setuid/setgid bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming the status of standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file descriptors closed, opening any files can result in unexpected content being read or written with elevated privileges. Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak the contents of its registers.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Google Go 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Go是美国谷歌（Google）公司的一种静态强类型、编译型、并发型，并具有垃圾回收功能的编程语言。 Google Go 1.19.10 之前版本、 1.20.0-0到1.20.5版本存在安全漏洞。攻击者利用该漏洞可以提升权限，从而读取或写入任意内容。
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
Go standard library runtime 0 ~ 1.19.10 -

II. Public POCs for CVE-2023-29403

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III. Intelligence Information for CVE-2023-29403

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Vendor Advisories for CVE-2023-29403 (1)

Mailing List Discussions for CVE-2023-29403 (2)

Other References for CVE-2023-29403 (4)

IV. Related Vulnerabilities

Same product: runtime
Same vendor: Go standard library

V. Comments for CVE-2023-29403

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