CVE-2023-39323

2023-10-0500:00:00

ubuntu.com

line directives

restrictions bypass

arbitrary code

compilation

file path

unix

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

53.4%

JSON

Line directives (“//line”) can be used to bypass the restrictions on
“//go:cgo_” directives, allowing blocked linker and compiler flags to be
passed during compilation. This can result in unexpected execution of
arbitrary code when running “go build”. The line directive requires the
absolute path of the file in which the directive lives, which makes
exploiting this issue significantly more complex.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchgolang-1.20< 1.20.3-1ubuntu0.1~20.04.1UNKNOWN
ubuntu22.04noarchgolang-1.20< 1.20.3-1ubuntu0.1~22.04.1UNKNOWN
ubuntu23.04noarchgolang-1.20< 1.20.3-1ubuntu0.2UNKNOWN
ubuntu23.10noarchgolang-1.20< 1.20.8-1ubuntu0.23.10.1UNKNOWN
ubuntu20.04noarchgolang-1.21< 1.21.1-1~ubuntu20.04.2UNKNOWN
ubuntu22.04noarchgolang-1.21< 1.21.1-1~ubuntu22.04.2UNKNOWN
ubuntu23.04noarchgolang-1.21< 1.21.1-1~ubuntu23.04.2UNKNOWN
ubuntu23.10noarchgolang-1.21< 1.21.1-1ubuntu0.23.10.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	golang-1.20	< 1.20.3-1ubuntu0.1~20.04.1	UNKNOWN
ubuntu	22.04	noarch	golang-1.20	< 1.20.3-1ubuntu0.1~22.04.1	UNKNOWN
ubuntu	23.04	noarch	golang-1.20	< 1.20.3-1ubuntu0.2	UNKNOWN
ubuntu	23.10	noarch	golang-1.20	< 1.20.8-1ubuntu0.23.10.1	UNKNOWN
ubuntu	20.04	noarch	golang-1.21	< 1.21.1-1~ubuntu20.04.2	UNKNOWN
ubuntu	22.04	noarch	golang-1.21	< 1.21.1-1~ubuntu22.04.2	UNKNOWN
ubuntu	23.04	noarch	golang-1.21	< 1.21.1-1~ubuntu23.04.2	UNKNOWN
ubuntu	23.10	noarch	golang-1.21	< 1.21.1-1ubuntu0.23.10.1	UNKNOWN