Ubuntu Security Notice 2791-1 - Tyson Smith and David Keeler discovered that NSS incorrectly handled decoding certain ASN.1 data. An remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code.
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Ubuntu Security Notice USN-2791-1
November 04, 2015
nss vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
NSS could be made to crash or run programs if it received specially
crafted input.
Software Description:
- nss: Network Security Service library
Details:
Tyson Smith and David Keeler discovered that NSS incorrectly handled
decoding certain ASN.1 data. An 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 15.10:
libnss3 2:3.19.2.1-0ubuntu0.15.10.1
Ubuntu 15.04:
libnss3 2:3.19.2.1-0ubuntu0.15.04.1
Ubuntu 14.04 LTS:
libnss3 2:3.19.2.1-0ubuntu0.14.04.1
Ubuntu 12.04 LTS:
libnss3 3.19.2.1-0ubuntu0.12.04.1
After a standard system update you need to restart any applications that
use NSS, such as Evolution and Chromium, to make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2791-1
CVE-2015-7181, CVE-2015-7182
Package Information:
https://launchpad.net/ubuntu/+source/nss/2:3.19.2.1-0ubuntu0.15.10.1
https://launchpad.net/ubuntu/+source/nss/2:3.19.2.1-0ubuntu0.15.04.1
https://launchpad.net/ubuntu/+source/nss/2:3.19.2.1-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/nss/3.19.2.1-0ubuntu0.12.04.1