CVE-2022-28131 Stack exhaustion from deeply nested XML documents in encoding/xml
An attacker can cause a panic and denial of service in Go applications by submitting deeply nested XML documents to the encoding/xml package.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-28131?
CVE-2022-28131 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 9 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Uncontrolled recursion in Decoder.Skip in encoding/xml before Go 1.17.12 and Go 1.18.4 allows an attacker to cause a panic due to stack exhaustion via a deeply nested XML document.
Weakness: CWE-674
Which versions are affected by CVE-2022-28131?
2 open source packages ship an affected version, including golang and stdlib. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
golang Bitnami | All versions | 1.17.12, 1.18.4 |
stdlib Go | All versions | 1.17.12, 1.18.4 |
Products include Fedoraproject Fedora, Golang Go, Netapp Cloud Insights Telegraf.
How do I fix CVE-2022-28131?
Upgrade golang to a fixed version for your release line: 1.17.12 or 1.18.4.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-28131 being exploited?
There is no known exploitation of CVE-2022-28131 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as AZL-10531, AZL-79000, AZL-98970, BIT-golang-2022-28131, DEBIAN-CVE-2022-28131, GHSA-3p2w-3263-9gr3 and 2 more.