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

Medium Nessus Plugin ID 132734

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: Medium

ID: 132734

File Name: al2_ALAS-2020-1379.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/01/09

Updated: 2020/01/15

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2019-11745

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/01/08

Vulnerability Publication Date: 2019/07/23

Reference Information

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

ALAS: 2020-1379