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CVE-2023-29405

9.8 · CRITICAL

The go command may execute arbitrary code at build time when using cgo.

Published Jun 8, 2023CWE-74EPSS 1.71%

Overview

CVE-2023-29405 is a critical-severity vulnerability. It was published on June 8, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The go command may execute arbitrary code at build time when using cgo. This may occur when running "go get" on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a "#cgo LDFLAGS" directive. Flags containing embedded spaces are mishandled, allowing disallowed flags to be smuggled through the LDFLAGS sanitization by including them in the argument of another flag. This only affects usage of the gccgo compiler.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgo.dev/cl/501224Refgo.dev/issue/60306Refgroups.google.com/g/golang-announce/c/q5135a9d924/m/j0ZoAJOHAwAJReflists.fedoraproject.org/archives/list/[email protected]/message/NZ2O6YCO2IZMZJELQGZYR2WAUNEDLYV6/Reflists.fedoraproject.org/archives/list/[email protected]/message/XBS3IIK6ADV24C5ULQU55QLT2UE762ZX/Refpkg.go.dev/vuln/GO-2023-1842Refsecurity.gentoo.org/glsa/202311-09Refgo.dev/cl/501224Refgo.dev/issue/60306Refgroups.google.com/g/golang-announce/c/q5135a9d924/m/j0ZoAJOHAwAJ

How CyberStrike helps

Frequently asked questions

What is CVE-2023-29405?

CVE-2023-29405 is a critical-severity vulnerability. It was published on June 8, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-29405?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-29405?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-29405?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-29405 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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