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UBUNTU-CVE-2023-29405 Critical

UBUNTU-CVE-2023-29405

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.

Exploit probability Not scored
Published June 8, 2023
Required by Not available
Last source change May 20, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:14.04:LTS golang-1.10

1 explicit affected versions

Ubuntu:16.04:LTS golang-1.10

2 explicit affected versions

Ubuntu:16.04:LTS golang-1.6

10 explicit affected versions

Ubuntu:18.04:LTS golang-1.10

8 explicit affected versions

Ubuntu:18.04:LTS golang-1.8

2 explicit affected versions

Ubuntu:18.04:LTS golang-1.9

5 explicit affected versions

Ubuntu:20.04:LTS golang-1.13

10 explicit affected versions

Ubuntu:20.04:LTS golang-1.14

9 explicit affected versions

Ubuntu:20.04:LTS golang-1.18

2 explicit affected versions

Ubuntu:20.04:LTS golang-1.20

2 explicit affected versions

Ubuntu:22.04:LTS golang-1.17

4 explicit affected versions

Ubuntu:22.04:LTS golang-1.18

7 explicit affected versions

Ubuntu:22.04:LTS golang-1.20

2 explicit affected versions

Ubuntu:Pro:16.04:LTS golang-1.13

4 explicit affected versions

Ubuntu:Pro:16.04:LTS golang-1.18

1 explicit affected versions

Ubuntu:Pro:18.04:LTS golang-1.13

4 explicit affected versions

Ubuntu:Pro:18.04:LTS golang-1.16

2 explicit affected versions

Ubuntu:Pro:18.04:LTS golang-1.18

2 explicit affected versions

Ubuntu:Pro:20.04:LTS golang-1.16

3 explicit affected versions

Ubuntu:Pro:22.04:LTS golang-1.13

4 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2023-29405

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.

View original source

05 / REFERENCES

Further evidence