=========================================================================Ubuntu Security Notice USN-4454-2
August 10, 2020

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

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:

USN-4454-1 fixed a vulnerability in Samba. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

 Martin von Wittich and Wilko Meyer discovered that Samba incorrectly
 handled certain empty UDP packets when being used as a AD DC NBT server. A
 remote attacker could possibly use this issue to cause Samba to crash,
 resulting in a denial of service.

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+esm8

Ubuntu 12.04 ESM:
  samba                           2:3.6.25-0ubuntu0.12.04.21

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

References:
  https://ubuntu.com/security/notices/USN-4454-2
  https://ubuntu.com/security/notices/USN-4454-1
  CVE-2020-14303

Ubuntu 4454-2: Samba vulnerability

August 10, 2020
Samba could be made to crash if it received specially crafted network traffic.

Summary

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+esm8 Ubuntu 12.04 ESM: samba 2:3.6.25-0ubuntu0.12.04.21 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4454-2

https://ubuntu.com/security/notices/USN-4454-1

CVE-2020-14303

Severity
August 10, 2020

Package Information

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