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ubuntuUbuntuUSN-3029-1
HistoryJul 11, 2016 - 12:00 a.m.

NSS vulnerability

2016-07-1100:00:00
ubuntu.com
26

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.4 High

AI Score

Confidence

High

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.017 Low

EPSS

Percentile

87.5%

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 15.10
  • Ubuntu 14.04 ESM
  • Ubuntu 12.04

Packages

  • nss - Network Security Service library

Details

Tyson Smith and Jed Davis discovered that NSS incorrectly handled memory. A
remote attacker could use this issue to cause NSS to crash, resulting in a
denial of service, or possibly execute arbitrary code.

This update refreshes the NSS package to version 3.23 which includes
the latest CA certificate bundle. As a security improvement, this update
also modifies NSS behaviour to reject DH key sizes below 1024 bits,
preventing a possible downgrade attack.

OSVersionArchitecturePackageVersionFilename
Ubuntu16.04noarchlibnss3<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-1d<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-dbg<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-dbgsym<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-dev<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-nssdb<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-tools<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu16.04noarchlibnss3-tools-dbgsym<ย 2:3.23-0ubuntu0.16.04.1UNKNOWN
Ubuntu15.10noarchlibnss3<ย 2:3.23-0ubuntu0.15.10.1UNKNOWN
Ubuntu15.10noarchlibnss3-1d<ย 2:3.23-0ubuntu0.15.10.1UNKNOWN
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8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.4 High

AI Score

Confidence

High

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.017 Low

EPSS

Percentile

87.5%