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USN-4341-1: Samba vulnerabilities

28 April 2020

Several security issues were fixed in Samba.

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Releases

Packages

  • samba - SMB/CIFS file, print, and login server for Unix

Details

Andrei Popa discovered that Samba incorrectly handled certain LDAP queries.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 19.10 and Ubuntu 20.04 LTS. (CVE-2020-10700)

It was discovered that Samba incorrectly handled certain LDAP queries. A
remote attacker could possibly use this issue to cause Samba to consume
resources, resulting in a denial of service. (CVE-2020-10704)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04
Ubuntu 19.10
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-4341-2: registry-tools, libparse-pidl-perl, python-samba, libwbclient-dev, libsmbsharemodes-dev, samba, libsmbclient-dev, samba-common, samba-libs, winbind, libsmbclient, libsmbsharemodes0, libwbclient0, samba-testsuite, libnss-winbind, samba-dev, samba-doc, smbclient, samba-vfs-modules, libpam-winbind, samba-common-bin, libpam-smbpass, samba-dsdb-modules