CVE-2023-29403 Unsafe behavior in setuid/setgid binaries in runtime
Go runtime fails to handle setuid/setgid binaries safely, potentially leaking register contents or allowing unexpected file access with elevated privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-29403?
CVE-2023-29403 is a high-severity vulnerability in Fedoraproject Fedora, published on 8 Jun 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
On Unix platforms, the Go runtime does not behave differently when a binary is run with the setuid/setgid bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming the status of standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file descriptors closed, opening any files can result in unexpected content being read or written with elevated privileges. Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak the contents of its registers.
Weakness: CWE-668
Which versions are affected by CVE-2023-29403?
2 open source packages ship an affected version, including golang and stdlib. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
golang Bitnami | All versions | 1.19.10, 1.20.5 |
stdlib Go | All versions | 1.19.10, 1.20.5 |
Products include Fedoraproject Fedora, Golang Go.
How do I fix CVE-2023-29403?
Upgrade golang to a fixed version for your release line: 1.19.10 or 1.20.5.
Is CVE-2023-29403 being exploited?
There is no known exploitation of CVE-2023-29403 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as AZL-27112, AZL-27121, AZL-37301, AZL-37368, AZL-52789, AZL-79002 and 8 more.