What’s Vulnerable › Vulnerabilities

CVE-2022-30634: Indefinite hang with large buffers on Windows in crypto/rand

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-15 · updated 2026-06-17
• Weakness: CWE-835

Description

Infinite loop in Read in crypto/rand before Go 1.17.11 and Go 1.18.3 on Windows allows attacker to cause an indefinite hang by passing a buffer larger than 1 << 32 - 1 bytes.

Affected products

• Go: before 1.17.11; from 1.18.0 before 1.18.3 — fixed in 1.17.11, 1.18.3
• NetApp Cloud Insights Telegraf Agent: all versions

How to fix

Upgrade to a fixed version: Go 1.17.11, 1.18.3. Check the vendor advisory for mitigations.

References

• https://go.dev/cl/402257
• https://go.dev/issue/52561
• https://go.googlesource.com/go/+/bb1f4416180511231de6d17a1f2f55c82aafc863
• https://groups.google.com/g/golang-announce/c/TzIC9-t8Ytg/m/IWz5T6x7AAAJ
• https://pkg.go.dev/vuln/GO-2022-0477
• https://go.dev/cl/402257
• https://go.dev/issue/52561
• https://go.googlesource.com/go/+/bb1f4416180511231de6d17a1f2f55c82aafc863
• https://groups.google.com/g/golang-announce/c/TzIC9-t8Ytg/m/IWz5T6x7AAAJ
• https://pkg.go.dev/vuln/GO-2022-0477

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