Detections
Analytics
Amazon Linux 2 : bind (ALAS-2026-4038)
high Nessus Plugin ID 371755
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of bind installed on the remote host is prior to 9.11.4-26.P2. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-4038 advisory.Inbound-message resource exhaustion (CWE-400) leading to denial of service. No configuration precondition;
version applicability is the deciding factor. Affected versions: 9.11.0-9.18.50, 9.20.0-9.20.29, 9.21.0-9.21.26. (CVE-2026-19630)
Replaying GSS-TSIG signed UDP messages can result in memory corruption in named. An attacker who can capture a previously signed UDP message can replay it while the negotiated TSIG key is still valid. By also sending crafted queries to a zone the attacker controls, the attacker may potentially achieve remote code execution. (CVE-2026-94300)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update bind' or or 'yum update --advisory ALAS2-2026-4038' to update your system.See Also
https://alas.aws.amazon.com//AL2/ALAS2-2026-4038.html
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: High
ID: 371755
File Name: al2_ALAS-2026-4038.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 10/24/2026
Updated: 10/24/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.6
Percentile: 98.19
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-94300
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:bind-chroot, p-cpe:/a:amazon:linux:bind-debuginfo, p-cpe:/a:amazon:linux:bind-devel, p-cpe:/a:amazon:linux:bind-export-devel, p-cpe:/a:amazon:linux:bind-export-libs, p-cpe:/a:amazon:linux:bind-libs-lite, p-cpe:/a:amazon:linux:bind-libs, p-cpe:/a:amazon:linux:bind-license, p-cpe:/a:amazon:linux:bind-lite-devel, p-cpe:/a:amazon:linux:bind-pkcs11-devel, p-cpe:/a:amazon:linux:bind-pkcs11-libs, p-cpe:/a:amazon:linux:bind-pkcs11-utils, p-cpe:/a:amazon:linux:bind-pkcs11, p-cpe:/a:amazon:linux:bind-sdb-chroot, p-cpe:/a:amazon:linux:bind-sdb, p-cpe:/a:amazon:linux:bind-utils, p-cpe:/a:amazon:linux:bind
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/24/2026
Vulnerability Publication Date: 10/21/2026
Reference Information
CVE: CVE-2026-19630, CVE-2026-94300
IAVA: 2026-A-1197