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: samba, samba-dev, smbclient, registry-tools, samba-common-bin, samba-libs, ctdb, samba-common, libwbclient0, libpam-winbind, libsmbclient, samba-vfs-modules, libsmbclient-dev, python3-samba, samba-testsuite, winbind, libnss-winbind, libwbclient-dev, samba-dsdb-modules
- USN-5260-3: samba, libpam-smbpass, samba-doc, samba-dev, smbclient, registry-tools, libsmbsharemodes-dev, libsmbsharemodes0, samba-common-bin, samba-libs, python-samba, ctdb, samba-common, libwbclient0, libpam-winbind, libsmbclient, libparse-pidl-perl, samba-vfs-modules, libsmbclient-dev, samba-testsuite, winbind, libnss-winbind, libwbclient-dev, samba-dsdb-modules