Alpine: multiple librewolf packages: security update to 75.0-r0

critical Tenable Self-Hosted Container Security Plugin ID 426198

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in
Firefox 74. Some of these bugs showed evidence of memory corruption and we presume that with enough effort
some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 75.
(CVE-2020-6826)

- When reading from areas partially or fully outside the source resource with WebGL's
<code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously,
this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability
affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75. (CVE-2020-6821)

- On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in
<code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run
arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
(CVE-2020-6822)

- A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling the
redirect_uri, and through the Promise returned, obtain the Auth code and gain access to the user's account
at the service provider. This vulnerability affects Firefox < 75. (CVE-2020-6823)

- Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the
Private Browsing Window but leaves Firefox open. Subsequently, if the user had opened a new Private
Browsing Window, revisited the same site, and generated a new password - the generated passwords would
have been identical, rather than independent. This vulnerability affects Firefox < 75. (CVE-2020-6824)

Plugin Details

Severity: Critical

ID: 426198

Version: Revision 1.6

Type: Local

Family: Alpine Linux Local Security Checks

Published: 5/16/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 95.09

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-6826

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/7/2020

Reference Information

CVE: CVE-2020-6821, CVE-2020-6822, CVE-2020-6823, CVE-2020-6824, CVE-2020-6825, CVE-2020-6826

Detections

Analytics