exploit the possibilities

Ubuntu Security Notice USN-4060-1

Ubuntu Security Notice USN-4060-1
Posted Jul 16, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4060-1 - Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing certain curve25519 private keys. An attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly obtain sensitive information. Hubert Kario discovered that NSS incorrectly handled PKCS#1 v1.5 signatures when using TLSv1.3. An attacker could possibly use this issue to trick NSS into using PKCS#1 v1.5 signatures, contrary to expectations. This issue only applied to Ubuntu 19.04. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2019-11719, CVE-2019-11727, CVE-2019-11729
MD5 | acf4fb5b8ce93a4b59ab3ef1e3ef1c1b

Ubuntu Security Notice USN-4060-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4060-1
July 16, 2019

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

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

- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in NSS.

Software Description:
- nss: Network Security Service library

Details:

Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing
certain curve25519 private keys. An attacker could use this issue to cause
NSS to crash, resulting in a denial of service, or possibly obtain
sensitive information. (CVE-2019-11719)

Hubert Kario discovered that NSS incorrectly handled PKCS#1 v1.5 signatures
when using TLSv1.3. An attacker could possibly use this issue to trick NSS
into using PKCS#1 v1.5 signatures, contrary to expectations. This issue
only applied to Ubuntu 19.04. (CVE-2019-11727)

Jonas Allmann discovered that NSS incorrectly handled certain p256-ECDH
public keys. An attacker could possibly use this issue to cause NSS to
crash, resulting in a denial of service. (CVE-2019-11729)

Update instructions:

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

Ubuntu 19.04:
libnss3 2:3.42-1ubuntu2.1

Ubuntu 18.04 LTS:
libnss3 2:3.35-2ubuntu2.3

Ubuntu 16.04 LTS:
libnss3 2:3.28.4-0ubuntu0.16.04.6

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/4060-1
CVE-2019-11719, CVE-2019-11727, CVE-2019-11729

Package Information:
https://launchpad.net/ubuntu/+source/nss/2:3.42-1ubuntu2.1
https://launchpad.net/ubuntu/+source/nss/2:3.35-2ubuntu2.3
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.6

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

August 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Aug 1st
    10 Files
  • 2
    Aug 2nd
    8 Files
  • 3
    Aug 3rd
    2 Files
  • 4
    Aug 4th
    1 Files
  • 5
    Aug 5th
    15 Files
  • 6
    Aug 6th
    79 Files
  • 7
    Aug 7th
    16 Files
  • 8
    Aug 8th
    10 Files
  • 9
    Aug 9th
    10 Files
  • 10
    Aug 10th
    0 Files
  • 11
    Aug 11th
    6 Files
  • 12
    Aug 12th
    26 Files
  • 13
    Aug 13th
    15 Files
  • 14
    Aug 14th
    19 Files
  • 15
    Aug 15th
    52 Files
  • 16
    Aug 16th
    11 Files
  • 17
    Aug 17th
    1 Files
  • 18
    Aug 18th
    0 Files
  • 19
    Aug 19th
    0 Files
  • 20
    Aug 20th
    0 Files
  • 21
    Aug 21st
    0 Files
  • 22
    Aug 22nd
    0 Files
  • 23
    Aug 23rd
    0 Files
  • 24
    Aug 24th
    0 Files
  • 25
    Aug 25th
    0 Files
  • 26
    Aug 26th
    0 Files
  • 27
    Aug 27th
    0 Files
  • 28
    Aug 28th
    0 Files
  • 29
    Aug 29th
    0 Files
  • 30
    Aug 30th
    0 Files
  • 31
    Aug 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close