USN-5260-2: Samba vulnerability
1 February 2022
Samba could be made to crash or run programs as an administrator if it received specially crafted network traffic.
Releases
Packages
- samba - SMB/CIFS file, print, and login server for Unix
Details
Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled
certain memory operations. A remote attacker could use this issue to cause
Samba to crash, resulting in a denial of service, or possibly execute
arbitrary code as root. (CVE-2021-44142)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5260-1: libwbclient0, samba, smbclient, samba-dev, libwbclient-dev, winbind, samba-vfs-modules, ctdb, samba-common, samba-libs, registry-tools, libnss-winbind, libsmbclient, libpam-winbind, python3-samba, libsmbclient-dev, samba-testsuite, samba-common-bin, samba-dsdb-modules
- USN-5260-3: libwbclient0, samba, smbclient, samba-dev, libwbclient-dev, winbind, samba-doc, libpam-smbpass, samba-vfs-modules, ctdb, samba-common, libsmbsharemodes-dev, samba-libs, registry-tools, libsmbsharemodes0, libnss-winbind, libsmbclient, libpam-winbind, libsmbclient-dev, python-samba, samba-testsuite, samba-common-bin, samba-dsdb-modules, libparse-pidl-perl