OSV-2024-964 Security exception in com.alibaba.fastjson2.JSONPathSegment$CycleNameSegment$MapLoop.accept
A security exception in fastjson2's JSONPath processing can cause a denial of service when parsing malicious input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2024-964?
OSV-2024-964 is a denial of service vulnerability in fastjson2, published on 16 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=69767
Crash type: Security exception
Crash state:
com.alibaba.fastjson2.JSONPathSegment$CycleNameSegment$MapLoop.accept
java.base/java.util.ArrayList.forEach
java.base/java.nio.charset.CharsetEncoder.<init>
Which versions are affected by OSV-2024-964?
1 open source package ship an affected version, including fastjson2.
| Package | Affected | Fixed in |
|---|---|---|
fastjson2 OSS-Fuzz | All versions | None |
How do I fix OSV-2024-964?
No fix has been published for OSV-2024-964 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is OSV-2024-964 being exploited?
There is no known exploitation of OSV-2024-964 in the wild and no public exploit code.