Bug#1025910: libcommons-net-java: CVE-2021-37533

[Salvatore Bonaccorso]

Source: libcommons-net-java
Version: 3.6-1
Severity: important
Tags: security upstream
Forwarded: https://issues.apache.org/jira/browse/NET-711
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libcommons-net-java.

CVE-2021-37533[0]:
| Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host
| from PASV response by default. A malicious server can redirect the
| Commons Net code to use a different host, but the user has to connect
| to the malicious server in the first place. This may lead to leakage
| of information about services running on the private network of the
| client. The default in version 3.9.0 is now false to ignore such
| hosts, as cURL does. See
| https://issues.apache.org/jira/browse/NET-711.


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-2021-37533
    https://www.cve.org/CVERecord?id=CVE-2021-37533
[1] https://issues.apache.org/jira/browse/NET-711

Regards,
Salvatore