Ubuntu Security Notice USN-4454-2 ≈ Packet Storm – Digitalmunition

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Published on August 11th, 2020 📆 | 8095 Views ⚑


Ubuntu Security Notice USN-4454-2 ≈ Packet Storm

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


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

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


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.


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