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AUSCERT External Security Bulletin Redistribution
ESB-2019.2197
USN-4018-1: samba vulnerabilities
20 June 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: samba
Publisher: Ubuntu
Operating System: Ubuntu
Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-12436 CVE-2019-12435
Original Bulletin:
https://usn.ubuntu.com/4018-1/
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running samba check for an updated version of the software for their
operating system.
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USN-4018-1: samba vulnerabilities
19 June 2019
samba vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.04
Summary
Samba could be made to crash if it received specially crafted network traffic.
Software Description
o 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
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-12435
o CVE-2019-12436
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