vulnerability
Debian: CVE-2021-37533: libcommons-net-java -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:C/I:N/A:N) | Dec 3, 2022 | Jan 4, 2023 | Aug 15, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:C/I:N/A:N)
Published
Dec 3, 2022
Added
Jan 4, 2023
Modified
Aug 15, 2025
Description
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.
Solution
debian-upgrade-libcommons-net-java
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