CVE-2023-39323
Arbitrary code execution during build via line directives in cmd/go
- State
- Published
- Severity
- 8.1 High
- Published
- Oct 5, 2023
- Updated
- Jun 12, 2025
- Reserved
- Jul 27, 2023
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
cmd/goGo toolchain |
|
References
- https://go.dev/issue/63211
- https://go.dev/cl/533215
- https://groups.google.com/g/golang-announce/c/XBa1oHDevAo
- https://pkg.go.dev/vuln/GO-2023-2095
- https://security.netapp.com/advisory/ntap-20231020-0001/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/
- https://security.gentoo.org/glsa/202311-09
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