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CVE-2025-58188— Panic when validating certificates with DSA public keys in crypto/x509

Quick assessment

Affected
Go standard library crypto/x509
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 encoding是美国谷歌（Google）公司的一个基于Go语言为数据提供多种形式编码的代码库。 Google Go encoding存在安全漏洞，该漏洞源于验证包含DSA公钥的证书链时接口转换错误，可能导致程序崩溃。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-58188

Vulnerability Information
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Vulnerability Title
Panic when validating certificates with DSA public keys in crypto/x509
Source: CVE Program / CVE List V5
Vulnerability Description
Validating certificate chains which contain DSA public keys can cause programs to panic, due to a interface cast that assumes they implement the Equal method. This affects programs which validate arbitrary certificate chains.
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 encoding 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Go encoding是美国谷歌（Google）公司的一个基于Go语言为数据提供多种形式编码的代码库。 Google Go encoding存在安全漏洞，该漏洞源于验证包含DSA公钥的证书链时接口转换错误，可能导致程序崩溃。
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 crypto/x509 0 ~ 1.24.8 -

II. Public POCs for CVE-2025-58188

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III. Intelligence Information for CVE-2025-58188

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Vendor Advisories for CVE-2025-58188 (2)

Same Patch Batch · Go standard library · 2025-10-29 · 10 CVEs total

CVE-2025-58187 Quadratic complexity when checking name constraints in crypto/x509
CVE-2025-58186 Lack of limit when parsing cookies can cause memory exhaustion in net/http
CVE-2025-58183 Unbounded allocation when parsing GNU sparse map in archive/tar
CVE-2025-58189 ALPN negotiation error contains attacker controlled information in crypto/tls
CVE-2025-58185 Parsing DER payload can cause memory exhaustion in encoding/asn1
CVE-2025-47912 Insufficient validation of bracketed IPv6 hostnames in net/url
CVE-2025-61725 Excessive CPU consumption in ParseAddress in net/mail
CVE-2025-61724 Excessive CPU consumption in Reader.ReadResponse in net/textproto
CVE-2025-61723 Quadratic complexity when parsing some invalid inputs in encoding/pem

IV. Related Vulnerabilities

Same product: crypto/x509
Same vendor: Go standard library

V. Comments for CVE-2025-58188

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