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Ubuntu Security Notice USN-4018-1

Ubuntu Security Notice USN-4018-1
Posted Jun 19, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4018-1 - It was discovered that Samba incorrectly handled certain RPC messages. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. It was discovered that Samba incorrectly handled LDAP pages searches. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2019-12435, CVE-2019-12436
MD5 | f21eb2f45ebd1a547004a901c331774b

Ubuntu Security Notice USN-4018-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4018-1
June 19, 2019

samba vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.04

Summary:

Samba could be made to crash if it received specially crafted network
traffic.

Software Description:
- samba: SMB/CIFS file, print, and login server for Unix

Details:

It was discovered that Samba incorrectly handled certain RPC messages. A
remote attacker could possibly use this issue to cause Samba to crash,
resulting in a denial of service. (CVE-2019-12435)

It was discovered that Samba incorrectly handled LDAP pages searches. A
remote attacker could possibly use this issue to cause Samba to crash,
resulting in a denial of service. (CVE-2019-12436)

Update instructions:

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

Ubuntu 19.04:
samba 2:4.10.0+dfsg-0ubuntu2.2

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

References:
https://usn.ubuntu.com/4018-1
CVE-2019-12435, CVE-2019-12436

Package Information:
https://launchpad.net/ubuntu/+source/samba/2:4.10.0+dfsg-0ubuntu2.2

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