CVE-2020-28366 Arbitrary code execution in go command with cgo in cmd/go and cmd/cgo
Attackers can execute arbitrary code during build time by exploiting a code injection flaw in the Go toolchain's cgo component via malicious object files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-28366?
CVE-2020-28366 is a high-severity code injection vulnerability in Fedoraproject Fedora, published on 18 Nov 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Code injection in the go command with cgo before Go 1.14.12 and Go 1.15.5 allows arbitrary code execution at build time via a malicious unquoted symbol name in a linked object file.
Weakness: CWE-94
Which versions are affected by CVE-2020-28366?
2 open source packages ship an affected version, including golang and toolchain. It affects 4 products.
| Package | Affected | Fixed in |
|---|---|---|
golang Bitnami | All versions | 1.14.12, 1.15.5 |
toolchain Go | All versions | 1.14.12, 1.15.5 |
Products include Fedoraproject Fedora, Golang Go, Netapp Cloud Insights Telegraf Agent, Netapp Trident.
How do I fix CVE-2020-28366?
Upgrade golang to a fixed version for your release line: 1.14.12 or 1.15.5.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-28366 being exploited?
There is no known exploitation of CVE-2020-28366 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as AZL-38452, BIT-golang-2020-28366, DEBIAN-CVE-2020-28366, GHSA-mwfg-6wv9-379f, GO-2022-0475, UBUNTU-CVE-2020-28366.