FreeBSD : NSS -- multiple vulnerabilities (c4292768-5273-4f17-a267-c5fe35125ce4)

high Nessus Plugin ID 89768

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Mozilla Foundation reports :

Security researcher Francis Gabriel reported a heap-based buffer overflow in the way the Network Security Services (NSS) libraries parsed certain ASN.1 structures. An attacker could create a specially crafted certificate which, when parsed by NSS, would cause it to crash or execute arbitrary code with the permissions of the user.

Mozilla developer Tim Taubert used the Address Sanitizer tool and software fuzzing to discover a use-after-free vulnerability while processing DER encoded keys in the Network Security Services (NSS) libraries. The vulnerability overwrites the freed memory with zeroes.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 89768

File Name: freebsd_pkg_c429276852734f17a267c5fe35125ce4.nasl

Version: 2.10

Type: local

Family: FreeBSD Local Security Checks

Published: 3/9/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

CVSS v3

Risk Factor: High

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: p-cpe:/a:freebsd:freebsd:linux-seamonkey, p-cpe:/a:freebsd:freebsd:linux-c6-nss, cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:nss, p-cpe:/a:freebsd:freebsd:linux-firefox, p-cpe:/a:freebsd:freebsd:linux-thunderbird

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 3/8/2016

Vulnerability Publication Date: 3/8/2016

Reference Information

CVE: CVE-2016-1950, CVE-2016-1979

Detections

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