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

High Nessus Plugin ID 95052


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


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.

- 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.

- 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)


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 95052

File Name: sl_20161116_nss_and_nss_util_on_SL5_x.nasl

Version: $Revision: 2.1 $

Type: local

Agent: unix

Published: 2016/11/22

Modified: 2016/11/22

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 9.3

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


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