OSV-2022-749 Security exception in com.ctc.wstx.dtd.FullDTDReader.readContentSpec
A security exception in the Woodstox XML parser's DTD reader can cause a denial of service when processing malformed XML content.
- 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-2022-749?
OSV-2022-749 is a denial of service vulnerability in xstream, published on 20 Aug 2022. 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=50393
Crash type: Security exception
Crash state:
com.ctc.wstx.dtd.FullDTDReader.readContentSpec
java.base/java.nio.charset.CharsetEncoder.replaceWith
java.base/java.nio.charset.CharsetEncoder.<init>
Which versions are affected by OSV-2022-749?
1 open source package ship an affected version, including xstream.
| Package | Affected | Fixed in |
|---|---|---|
xstream OSS-Fuzz | All versions | None |
How do I fix OSV-2022-749?
No fix has been published for OSV-2022-749 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-2022-749 being exploited?
There is no known exploitation of OSV-2022-749 in the wild and no public exploit code.