Scientific Linux Security Update : nss, nss-util, nss-softokn, and nspr on SL6.x i386/x86_64 (20130807)

medium Nessus Plugin ID 69279

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Synopsis

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

Description

It was discovered that NSS leaked timing information when decrypting TLS/SSL and DTLS protocol encrypted records when CBC-mode cipher suites were used. A remote attacker could possibly use this flaw to retrieve plain text from the encrypted packets by using a TLS/SSL or DTLS server as a padding oracle. (CVE-2013-1620)

An out-of-bounds memory read flaw was found in the way NSS decoded certain certificates. If an application using NSS decoded a malformed certificate, it could cause the application to crash. (CVE-2013-0791)

This update also fixes the following bugs :

- The SLBA-2013:0445 update (which upgraded NSS to version 3.14) prevented the use of certificates that have an MD5 signature. This caused problems in certain environments.
With this update, certificates that have an MD5 signature are once again allowed. To prevent the use of certificates that have an MD5 signature, set the 'NSS_HASH_ALG_SUPPORT' environment variable to '-MD5'.

- Previously, the sechash.h header file was missing, preventing certain source RPMs (such as firefox and xulrunner) from building.

- A memory leak in the nssutil_ReadSecmodDB() function has been fixed.

In addition, the nss package has been upgraded to upstream version 3.14.3, the nss-util package has been upgraded to upstream version 3.14.3, the nss-softokn package has been upgraded to upstream version 3.14.3, and the nspr package has been upgraded to upstream version 4.9.5. These updates provide a number of bug fixes and enhancements over the previous versions.

After installing this update, applications using NSS, NSPR, nss-util, or nss-softokn must be restarted for this update to take effect.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 69279

File Name: sl_20130807_nss__nss_util__nss_softokn__and_nspr_on_SL6_x.nasl

Version: 1.5

Type: local

Agent: unix

Family: Scientific Linux Local Security Checks

Published: 8/9/2013

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:nss-softokn, p-cpe:/a:fermilab:scientific_linux:nspr-devel, p-cpe:/a:fermilab:scientific_linux:nss-softokn-freebl, p-cpe:/a:fermilab:scientific_linux:nspr, p-cpe:/a:fermilab:scientific_linux:nss-util-debuginfo, p-cpe:/a:fermilab:scientific_linux:nss-util-devel, x-cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:nspr-debuginfo, p-cpe:/a:fermilab:scientific_linux:nss-softokn-debuginfo, p-cpe:/a:fermilab:scientific_linux:nss-devel, p-cpe:/a:fermilab:scientific_linux:nss-softokn-freebl-devel, p-cpe:/a:fermilab:scientific_linux:nss-sysinit, p-cpe:/a:fermilab:scientific_linux:nss, p-cpe:/a:fermilab:scientific_linux:nss-debuginfo, p-cpe:/a:fermilab:scientific_linux:nss-util, p-cpe:/a:fermilab:scientific_linux:nss-softokn-devel, p-cpe:/a:fermilab:scientific_linux:nss-pkcs11-devel, p-cpe:/a:fermilab:scientific_linux:nss-tools

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

Patch Publication Date: 8/7/2013

Vulnerability Publication Date: 2/8/2013

Reference Information

CVE: CVE-2013-0791, CVE-2013-1620

Detections

Analytics