QID 375598

Date Published: 2021-06-24

QID 375598: Go Denial Of Service Vulnerability

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

CVE-2021-31525: A vulnerability was found in net/http of the Go standard library when parsing very large HTTP header values, causing a crash and subsequent denial of service. This vulnerability affects both clients and servers written in Go, however servers are only vulnerable if the default 1 MB value for MaxHeaderBytes is increased.

Affected Version:
Go version before 1.15.12
Go version 1.16.x before 1.16.4

QID Detection Logic(authenticated):
This QID checks for vulnerable version of Go installed on the target.

Note: For unix target, this QID will only work if Go path is properly set in environment variable.

Successful exploitation could result in denial of service attack.

  • CVSS V3 rated as Medium - 5.9 severity.
  • CVSS V2 rated as Low - 2.6 severity.
    • Solution
    It is advised to install the latest Go version from Go download page.
    Vendor References

    CVEs related to QID 375598

    CVE-2021-31525 |
    Software Advisories
    Advisory ID Software Component Link
    Go URL Logo golang.org/dl/
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