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

medium Nessus Plugin ID 89768
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 5.9

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.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2016-35/

https://www.mozilla.org/en-US/security/advisories/mfsa2016-36/

https://hg.mozilla.org/projects/nss/rev/b9a31471759d

https://hg.mozilla.org/projects/nss/rev/7033b1193c94

http://www.nessus.org/u?082597b7

Plugin Details

Severity: Medium

ID: 89768

File Name: freebsd_pkg_c429276852734f17a267c5fe35125ce4.nasl

Version: 2.10

Type: local

Published: 3/9/2016

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.8

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

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

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