Bug#1027754: libxstream-java: CVE-2022-41966

[Salvatore Bonaccorso]

Source: libxstream-java
Version: 1.4.19-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libxstream-java.

CVE-2022-41966[0]:
| XStream serializes Java objects to XML and back again. Versions prior
| to 1.4.20 may allow a remote attacker to terminate the application
| with a stack overflow error, resulting in a denial of service only via
| manipulation the processed input stream. The attack uses the hash code
| implementation for collections and maps to force recursive hash
| calculation causing a stack overflow. This issue is patched in version
| 1.4.20 which handles the stack overflow and raises an
| InputManipulationException instead. A potential workaround for users
| who only use HashMap or HashSet and whose XML refers these only as
| default map or set, is to change the default implementation of
| java.util.Map and java.util per the code example in the referenced
| advisory. However, this implies that your application does not care
| about the implementation of the map and all elements are comparable.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-41966
    https://www.cve.org/CVERecord?id=CVE-2022-41966
[1] https://x-stream.github.io/CVE-2022-41966.html
[2] https://github.com/x-stream/xstream/security/advisories/GHSA-j563-grx4-pjpv
[3] https://github.com/x-stream/xstream/commit/e9151f221b4969fb15b1e946d5d61dcdd459a391 

Regards,
Salvatore