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Ubuntu Security Notice USN-3759-1

Ubuntu Security Notice USN-3759-1
Posted Sep 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3759-1 - Aldy Hernandez discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. It was discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2016-4429, CVE-2017-8779, CVE-2018-14622
MD5 | 3faa990fcb5a94a1d6b91126071d7cfc

Ubuntu Security Notice USN-3759-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3759-1
September 05, 2018

libtirpc vulnerabilities
==========================================================================

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

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

Summary:

Several security issues were fixed in libtirpc.

Software Description:
- libtirpc: transport-independent RPC library - development files

Details:

Aldy Hernandez discovered that libtirpc incorrectly handled certain
inputs. An attacker could possibly use this issue to cause a denial of
service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04
LTS. (CVE-2016-4429)

It was discovered that libtirpc incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-14622)

It was discovered that libtirpc incorrectly handled certain strings.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.
(CVE-2017-8779)

Update instructions:

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

Ubuntu 18.04 LTS:
libtirpc-dev 0.2.5-1.2ubuntu0.1
libtirpc1 0.2.5-1.2ubuntu0.1

Ubuntu 16.04 LTS:
libtirpc-dev 0.2.5-1ubuntu0.1
libtirpc1 0.2.5-1ubuntu0.1

Ubuntu 14.04 LTS:
libtirpc-dev 0.2.2-5ubuntu2.1
libtirpc1 0.2.2-5ubuntu2.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3759-1
CVE-2016-4429, CVE-2017-8779, CVE-2018-14622

Package Information:
https://launchpad.net/ubuntu/+source/libtirpc/0.2.5-1.2ubuntu0.1
https://launchpad.net/ubuntu/+source/libtirpc/0.2.5-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libtirpc/0.2.2-5ubuntu2.1
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