VDB
Sign up
—

GO-2023-1841

Improper handling of non-optional LDFLAGS in go command with cgo in cmd/go

Quick fix

GO-2023-1841 — toolchain: upgrade to the fixed version with the command below.

go get toolchain@v1.19.10

Details

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.

The arguments for a number of flags which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/toolchain
Introduced in: 0Fixed in: 1.19.10
Fixgo get toolchain@v1.19.10

References