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.

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: High

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

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Vector: 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-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