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Ubuntu Security Notice USN-4203-2

Ubuntu Security Notice USN-4203-2
Posted Nov 28, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4203-2 - USN-4203-1 fixed a vulnerability in NSS. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that NSS incorrectly handled certain memory operations. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-11745
MD5 | e3c81da24686986b81918cb98c31ffce

Ubuntu Security Notice USN-4203-2

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4203-2
November 27, 2019

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

NSS could be made to crash or run programs if it received specially crafted
input.

Software Description:
- nss: Network Security Service library

Details:

USN-4203-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that NSS incorrectly handled certain memory operations. A
remote attacker could use this issue to cause NSS to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 ESM:
libnss3 2:3.28.4-0ubuntu0.14.04.5+esm2

Ubuntu 12.04 ESM:
libnss3 2:3.28.4-0ubuntu0.12.04.5

After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.

References:
https://usn.ubuntu.com/4203-2
https://usn.ubuntu.com/4203-1
CVE-2019-11745

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