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Debian Security Advisory 5307-1

Debian Linux Security Advisory 5307-1 - ZeddYu Lu discovered that the FTP client of Apache Commons Net, a Java client API for basic Internet protocols, 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.

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-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA512- -------------------------------------------------------------------------Debian Security Advisory DSA-5307-1                   [email protected]://www.debian.org/security/                          Markus KoschanyDecember 29, 2022                     https://www.debian.org/security/faq- -------------------------------------------------------------------------Package        : libcommons-net-javaCVE ID         : CVE-2021-37533Debian Bug     : 1025910ZeddYu Lu discovered that the FTP client of Apache Commons Net, a Javaclient API for basic Internet protocols, trusts the host from PASV responseby default. A malicious server can redirect the Commons Net code to use adifferent host, but the user has to connect to the malicious server in thefirst place. This may lead to leakage of information about services runningon the private network of the client.For the stable distribution (bullseye), this problem has been fixed inversion 3.6-1+deb11u1.We recommend that you upgrade your libcommons-net-java packages.For the detailed security status of libcommons-net-java please refer toits security tracker page at:https://security-tracker.debian.org/tracker/libcommons-net-javaFurther information about Debian Security Advisories, how to applythese updates to your system and frequently asked questions can befound at: https://www.debian.org/security/Mailing list: [email protected] PGP SIGNATURE-----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sUOH-----END PGP SIGNATURE-----

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