id: GO-2023-1841
modules:
    - module: cmd
      versions:
        - fixed: 1.19.10
        - introduced: 1.20.0-0
          fixed: 1.20.5
      vulnerable_at: 1.20.4
      packages:
        - package: cmd/go
summary: Improper handling of non-optional LDFLAGS in go command with cgo in cmd/go
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.

    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.
credits:
    - Juho Nurminen of Mattermost
references:
    - report: https://go.dev/issue/60305
    - fix: https://go.dev/cl/501225
    - web: https://groups.google.com/g/golang-announce/c/q5135a9d924/m/j0ZoAJOHAwAJ
cve_metadata:
    id: CVE-2023-29404
    cwe: 'CWE-94: Improper Control of Generation of Code ("Code Injection")'
    references:
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBS3IIK6ADV24C5ULQU55QLT2UE762ZX/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZ2O6YCO2IZMZJELQGZYR2WAUNEDLYV6/
        - https://security.gentoo.org/glsa/202311-09