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Sicherheit: Mehrere Probleme in NSS
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in NSS
ID: USN-3850-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 18.10
Datum: Mi, 9. Januar 2019, 23:45
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0495
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12404
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12384
Applikationen: NSS

Originalnachricht

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <398c8b5b-20b4-34af-e0d4-eb1552db0e6a@canonical.com>
Subject: [USN-3850-1] NSS vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3850-1
January 09, 2019

nss vulnerabilities
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in NSS.

Software Description:
- nss: Network Security Service library

Details:

Keegan Ryan discovered that NSS incorrectly handled ECDSA key generation.
A local attacker could possibly use this issue to perform a cache-timing
attack and recover private ECDSA keys. (CVE-2018-0495)

It was discovered that NSS incorrectly handled certain v2-compatible
ClientHello messages. A remote attacker could possibly use this issue to
perform a replay attack. (CVE-2018-12384)

It was discovered that NSS incorrectly handled certain padding oracles. A
remote attacker could possibly use this issue to perform a variant of the
Bleichenbacher attack. (CVE-2018-12404)

Update instructions:

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

Ubuntu 18.10:
libnss3 2:3.36.1-1ubuntu1.1

Ubuntu 18.04 LTS:
libnss3 2:3.35-2ubuntu2.1

Ubuntu 16.04 LTS:
libnss3 2:3.28.4-0ubuntu0.16.04.4

Ubuntu 14.04 LTS:
libnss3 2:3.28.4-0ubuntu0.14.04.4

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/usn/usn-3850-1
CVE-2018-0495, CVE-2018-12384, CVE-2018-12404

Package Information:
https://launchpad.net/ubuntu/+source/nss/2:3.36.1-1ubuntu1.1
https://launchpad.net/ubuntu/+source/nss/2:3.35-2ubuntu2.1
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.4
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.14.04.4


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