CVE-2023-29404

2023-06-0821:15:17

Alpine Linux Development Team

security.alpinelinux.org

vulnerability

go command

execution

arbitrary code

cgo

ldflags

linker flags

malicious module

untrusted code

gccgo

gc compilers

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.9

Confidence

High

EPSS

0.007

Percentile

81.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchgo< 1.20.5-r0UNKNOWN
Alpine3.18-communitynoarchgo< 1.20.5-r0UNKNOWN
Alpine3.19-communitynoarchgo< 1.20.5-r0UNKNOWN
Alpine3.20-communitynoarchgo< 1.20.5-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	go	< 1.20.5-r0	UNKNOWN
Alpine	3.18-community	noarch	go	< 1.20.5-r0	UNKNOWN
Alpine	3.19-community	noarch	go	< 1.20.5-r0	UNKNOWN
Alpine	3.20-community	noarch	go	< 1.20.5-r0	UNKNOWN