Alpine: multiple bind packages: security update to 9.20.11-r0

high Tenable Cloud Security Plugin ID 428418

Description

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

- A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable
to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1
through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1. (CVE-2025-40776)

- If a `named` caching resolver is configured with `serve-stale-enable` `yes`, and with `stale-answer-
client-timeout` set to `0` (the only allowable value other than `disabled`), and if the resolver, in the
process of resolving a query, encounters a CNAME chain involving a specific combination of cached or
authoritative records, the daemon will abort with an assertion failure. This issue affects BIND 9 versions
9.20.0 through 9.20.10, 9.21.0 through 9.21.9, and 9.20.9-S1 through 9.20.10-S1. (CVE-2025-40777)

Plugin Details

Severity: High

ID: 428418

Version: Revision 1.6

Type: Local

Family: Alpine Linux Local Security Checks

Published: 7/16/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.27

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-40776

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/16/2025

Reference Information

CVE: CVE-2025-40776, CVE-2025-40777

Detections

Analytics