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Ubuntu Security Notice USN-3810-1

Ubuntu Security Notice USN-3810-1
Posted Nov 6, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3810-1 - Ivan Gotovchits discovered that ppp incorrectly handled the EAP-TLS protocol. A remote attacker could use this issue to cause ppp to crash, resulting in a denial of service, or possibly bypass authentication.

tags | advisory, remote, denial of service, protocol
systems | linux, ubuntu
advisories | CVE-2018-11574
MD5 | bea0355887912e2020914ed77fd7dedf

Ubuntu Security Notice USN-3810-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3810-1
November 06, 2018

ppp vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

ppp could be made to crash or bypass authentication if it received
specially crafted network traffic.

Software Description:
- ppp: Point-to-Point Protocol (PPP)

Details:

Ivan Gotovchits discovered that ppp incorrectly handled the EAP-TLS
protocol. A remote attacker could use this issue to cause ppp to crash,
resulting in a denial of service, or possibly bypass authentication.

Update instructions:

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

Ubuntu 18.04 LTS:
ppp 2.4.7-2+2ubuntu1.1

Ubuntu 16.04 LTS:
ppp 2.4.7-1+2ubuntu1.16.04.1

Ubuntu 14.04 LTS:
ppp 2.4.5-5.1ubuntu2.3

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

References:
https://usn.ubuntu.com/usn/usn-3810-1
CVE-2018-11574

Package Information:
https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+2ubuntu1.1
https://launchpad.net/ubuntu/+source/ppp/2.4.7-1+2ubuntu1.16.04.1
https://launchpad.net/ubuntu/+source/ppp/2.4.5-5.1ubuntu2.3

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