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