==========================================================================
Ubuntu Security Notice USN-4341-2
April 29, 2020
samba vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 ESM
Summary:
Samba could be made to consume resources if it received a specially
crafted LDAP query.
Software Description:
– samba: SMB/CIFS file, print, and login server for Unix
Details:
USN-4341-1 fixed a vulnerability in Samba. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 ESM:
samba 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4341-2
https://usn.ubuntu.com/4341-1
CVE-2020-10704
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==========================================================================
Ubuntu Security Notice USN-4341-3
April 29, 2020
samba regression
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.04 LTS
Summary:
USN-4341-1 introduced a regression in Samba.
Software Description:
– samba: SMB/CIFS file, print, and login server for Unix
Details:
USN-4341-1 fixed vulnerabilities in Samba. The updated packages for
Ubuntu 16.04 LTS introduced a regression when using LDAP. This update fixes
the problem.
We apologize for the inconvenience.
Original advisory details:
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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.16.04.27
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4341-3
https://usn.ubuntu.com/4341-1
https://launchpad.net/bugs/1875798
Package Information:
https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.27
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