Alpine: multiple librewolf packages: security update to 95.0-r0

high Tenable Self-Hosted Container Security Plugin ID 426762

Description

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

- Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC
occurring within the call not tracing those live pointers. This could have led to a use-after-free causing
a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0,
and Firefox < 95. (CVE-2021-43539)

- Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the
target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
(CVE-2021-43536)

- An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory
leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR <
91.4.0, and Firefox < 95. (CVE-2021-43537)

- By misusing a race in our notification code, an attacker could have forcefully hidden the notification for
pages that had received full screen and pointer lock access, which could have been used for spoofing
attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
(CVE-2021-43538)

Plugin Details

Severity: High

ID: 426762

Version: Revision 1.4

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: 4.9

Percentile: 57.12

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-2021-43539

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/7/2021

Reference Information

CVE: CVE-2021-43536, CVE-2021-43537, CVE-2021-43538, CVE-2021-43539, CVE-2021-43540, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543, CVE-2021-43544, CVE-2021-43545, CVE-2021-43546

Detections

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