Scientific Linux Security Update : nss and nss-util on SL5.x, SL6.x, SL7.x i386/x86_64

High Nessus Plugin ID 95052

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

The nss-util packages provide utilities for use with the Network Security Services (NSS) libraries.

The following packages have been upgraded to a newer upstream version:
nss (3.12.3), nss-util (3.12.3).

Security Fix(es) :

- Multiple buffer handling flaws were found in the way NSS handled cryptographic data from the network. A remote attacker could use these flaws to crash an application using NSS or, possibly, execute arbitrary code with the permission of the user running the application.
(CVE-2016-2834)

- A NULL pointer dereference flaw was found in the way NSS handled invalid Diffie-Hellman keys. A remote client could use this flaw to crash a TLS/SSL server using NSS.
(CVE-2016-5285)

- It was found that Diffie Hellman Client key exchange handling in NSS was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group. (CVE-2016-8635)

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?7d7102ad

Plugin Details

Severity: High

ID: 95052

File Name: sl_20161116_nss_and_nss_util_on_SL5_x.nasl

Version: 2.2

Type: local

Agent: unix

Published: 2016/11/22

Updated: 2018/12/28

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.0

Base Score: 8.8

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2016/11/16

Reference Information

CVE: CVE-2016-2834, CVE-2016-5285, CVE-2016-8635