CVE-2023-29405 - CVE House
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Status published Unknown CVE-2023-29405

Improper sanitization of LDFLAGS with embedded spaces in go command with cgo in cmd/go

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Juho Nurminen of Mattermost

References

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Affected Vendor

Go toolchain

View all reports →

Affected Software

cmd/go, cmd/cgo
Vulnerable Versions:
0, 1.20.0-0

Timeline

Official Publish: June 8th, 2023
Last Modified: January 6th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.