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CentOS 6 : firefox (RHSA-2020:5104)

high Nessus Plugin ID 208489

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Synopsis

The remote CentOS Linux host is missing a security update.

Description

The remote CentOS Linux 6 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:5104 advisory.

 - In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2. (CVE-2020-26950)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected firefox package.

See Also

https://access.redhat.com/errata/RHSA-2020:5104

Plugin Details

Severity: High

ID: 208489

File Name: centos_RHSA-2020-5104.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/9/2024

Updated: 10/10/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.7

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

CVSS Score Source: CVE-2020-26950

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.2

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:firefox

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/12/2020

Vulnerability Publication Date: 11/9/2020

Exploitable With

Metasploit (Firefox MCallGetProperty Write Side Effects Use After Free Exploit)

Reference Information

CVE: CVE-2020-26950

IAVA: 2020-A-0531-S

RHSA: 2020:5104