Detections
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Alpine: multiple firefox packages: security update to 82.0.3-r0

high Tenable Cloud Security Plugin ID 404374

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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)

See Also

https://security.alpinelinux.org/vuln/CVE-2020-26950

Plugin Details

Severity: High

ID: 404374

Version: Revision 1.27

Type: Local

Published: 10/31/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.67

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

Exploit Available: true

Exploit Ease: Exploits are available

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