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

緊急 9.8CVE-2023-29405 · BIT-golang-2023-29405 · GO-2023-1842 · 08/06/2023 公開 · 17/06/2026 更新

要点

CVE-2023-29405 は toolchain, go (golang) に影響する深刻度「緊急」 (CVSS 9.8) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.7%（全脆弱性の 77.4% より高い）。
対処：1.20.5, 1.19.10 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
toolchain Go	`≥ 1.20.0-0, < 1.20.5< 1.19.10`	`1.20.51.19.10`
go golang	`≥ 1.20.0, < 1.20.5< 1.19.10`	`1.20.51.19.10`

概要

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.

NVD の説明

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.