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Ubuntu 19.04 USN-4018-1 Moderate: Samba Denial Of Service Issues

ubuntu
Calendar Grey June 19, 2019
Dist Ubuntu Esm H88
Exploits in Samba on Ubuntu may result in system outages triggered by specially designed network packets, jeopardizing overall performance.
Samba could be made to crash if it received specially crafted network traffic.

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)

Topics%20covered

Topics Covered

security advisory denial of service samba ubuntu crash RPC messages LDAP search

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://ubuntu.com/security/notices/USN-4018-1

CVE-2019-12435, CVE-2019-12436

June 19, 2019

Topics%20covered

Topics Covered

security advisory denial of service samba ubuntu crash RPC messages LDAP search

Package Information

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

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