![]() This SMB extension should also eliminate the need for AFP unless you're stuck with very old OS X versions. In theory Samba 4.3 includes a VFS module named vfsfruit to integrate Samba with netatalk and implement the APPL SMB extension. Sorry, the comment form is closed at this time. However, the previous Netatalk update was released in December 2018 and many assumed the project was no longer maintained. An other problem in your case is that Samba mangles filenames illegal under the SMB protocol. ![]() I accept no liability and provide no guarantees. It’s actually way easier to configure now though, so don’t fret too much.īig important note: I’m providing this purely as a convenience. Netatalk v3 uses an entirely new config format, so you’ll have to recreate your config files (hence why we used –purge above). Install the pre-requisites: # apt-get install libdbus-glib-1-2 libmysqlclient18 mysql-common libcrack2 avahi-daemonĭownload this: netatalk_3.1.3-1_bĪnd install it: # dpkg -i netatalk_3.1.3-1_b Anyway, no point in going to all that bother and not sharing it.įirst make sure you remove the old version: # apt-get remove –purge netatalk I've tried to look through all active services and don't see anything related to Netatalk of AFP and yet. Netatalk helpfully includes directions on compiling netatalk from source on Wheezy here, but I don’t like to have all those dev packages on my fileserver, which means spinning up a build host, creating a deb, yada yada yada. sudo apt-get remove -auto-remove netatalk sudo apt-get purge -auto-remove netatalk I eventually found that, even after all of that, the file /etc/netatalk/afp.conf still existed, so I deleted that file too, as well as its parent folder. My specific problem was intermittently failing time machine backups from the Macs in my house. Even Jessie only has 2.2.5, while the latest from is 3.1.3. ![]() This document was written by James Stanley and Art Manion.I’ve found the netatalk available in Wheezy (version 2.2.2) to be flakey for a while now. Thanks also to Samba, ZDI, and Western Digital for coordination efforts. Thanks to Orange Tsai of DEVCORE for researching and reporting this vulnerability. The Server Name field has also been removed from AFP in Netatalk 3. Disable vfs_fruitĪs a workaround, remove ‘fruit’ from ‘vfs objects’ lines in Samba configuration files (e.g., smb.conf). Delete potentially harmful kmem size tunables created (in former times) by the. After updating apt database, We can install netatalk using apt-get by running the following command: sudo apt-get -y install netatalk. Samba has released versions 4.13.17, 4.14.12, and 4.15.5. Update apt database with apt-get using the following command. Note that this could be a guest or unauthenticated user if such users are allowed write access to file extended attributes. ImpactĪ remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.įrom the Samba annoucement for CVE-2021-44142:Īccess as a user that has write access to a file’s extended attributes is required to exploit this vulnerability. Also available for reference is a detailed blog post from ZDI. The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide “…enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.” Samba with vfs_fruit configured allows out-of-bounds heap read and write via specially crafted extended file attributes.įor more information, see the Samba announcement for CVE-2021-44142 and bug 14914. This vulnerability allows a remote attacker to execute arbitrary code with root privileges. The Samba vfs_fruit module allows out-of-bounds heap read and write via extended file attributes (CVE-2021-44142). Version 3.
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