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Amazon Linux 2 : nss-softokn (ALAS-2020-1379)

high Nessus Plugin ID 132734

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. (CVE-2019-11729)

A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss).
While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. (CVE-2019-11745)

Solution

Run 'yum update nss-softokn' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1379.html

Plugin Details

Severity: High

ID: 132734

File Name: al2_ALAS-2020-1379.nasl

Version: 1.3

Type: local

Agent: unix

Published: 1/9/2020

Updated: 1/15/2020

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2019-11745

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:nss-softokn-freebl, p-cpe:/a:amazon:linux:nss-softokn-freebl-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:nss-softokn-debuginfo, p-cpe:/a:amazon:linux:nss-softokn, p-cpe:/a:amazon:linux:nss-softokn-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/8/2020

Vulnerability Publication Date: 7/23/2019

Reference Information

CVE: CVE-2019-11729, CVE-2019-11745

ALAS: 2020-1379