CVE-2020-8441 Deserialization of Untrusted Data in JYaml
Remote attackers can execute arbitrary code via malicious YAML payloads in the discontinued JYaml library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-8441?
CVE-2020-8441 is a critical unsafe deserialization vulnerability in n/a, published on 19 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
Weakness: CWE-502
Which versions are affected by CVE-2020-8441?
2 open source packages ship an affected version, including org.jyaml:jyaml. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jyaml:jyaml Maven | All versions to 1.3 | None |
org.jyaml:jyaml Maven | All versions to 1.3 | None |
Products include Jyaml Project Jyaml.
How do I fix CVE-2020-8441?
No fix has been published for CVE-2020-8441 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-8441 being exploited?
There is no known exploitation of CVE-2020-8441 in the wild and no public exploit code.
Sources
Also known as GHSA-4qhr-q7wf-94xp.