Detections
Analytics

Amazon Linux 2023 : aspnetcore-runtime-8.0, aspnetcore-runtime-dbg-8.0, aspnetcore-targeting-pack-8.0 (ALAS2023-2026-3367)

critical Nessus Plugin ID 374355

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3367 advisory.

 Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network. (CVE-2026-102870)

 Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-109468)

 A vulnerability in the Node.js Brotli decoder can result in an out-of-bounds memory write when processing crafted Brotli input. Successful exploitation may lead to memory corruption and remote code execution.
 (CVE-2026-111497)

 Incorrect default permissions in ASP.NET Core allows an authorized attacker to elevate privileges locally.
 (CVE-2026-114148)

 Uncontrolled recursion in .NET allows an unauthorized attacker to deny service over a network.
 (CVE-2026-58280)

 Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
 (CVE-2026-69651)

 Out-of-bounds write in .NET Framework allows an unauthorized attacker to execute code over a network.
 (CVE-2026-70007)

 Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-70159)

 Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network. (CVE-2026-70175)

 Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network. (CVE-2026-70179)

 Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-70181)

 Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network. (CVE-2026-70183)

 Deadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-70186)

 Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
 (CVE-2026-70197)

 Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
 (CVE-2026-83520)

 Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
 (CVE-2026-84008)

 Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network. (CVE-2026-96222)

 Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally. (CVE-2026-96225)

 Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally. (CVE-2026-96231)

 Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny service over a network.
 (CVE-2026-96233)

 Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-96236)

 Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network. (CVE-2026-96237)

 Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
 (CVE-2026-96958)

 Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network. (CVE-2026-96959)

 Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network. (CVE-2026-96960)

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 'dnf update dotnet8.0 --releasever 2023.12.20261102' or or 'dnf update --advisory ALAS2023-2026-3367 --releasever 2023.12.20261102' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-3367.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-102870.html

https://explore.alas.aws.amazon.com/CVE-2026-109468.html

https://explore.alas.aws.amazon.com/CVE-2026-111497.html

https://explore.alas.aws.amazon.com/CVE-2026-114148.html

https://explore.alas.aws.amazon.com/CVE-2026-58280.html

https://explore.alas.aws.amazon.com/CVE-2026-69651.html

https://explore.alas.aws.amazon.com/CVE-2026-70007.html

https://explore.alas.aws.amazon.com/CVE-2026-70159.html

https://explore.alas.aws.amazon.com/CVE-2026-70175.html

https://explore.alas.aws.amazon.com/CVE-2026-70179.html

https://explore.alas.aws.amazon.com/CVE-2026-70181.html

https://explore.alas.aws.amazon.com/CVE-2026-70183.html

https://explore.alas.aws.amazon.com/CVE-2026-70186.html

https://explore.alas.aws.amazon.com/CVE-2026-70197.html

https://explore.alas.aws.amazon.com/CVE-2026-83520.html

https://explore.alas.aws.amazon.com/CVE-2026-84008.html

https://explore.alas.aws.amazon.com/CVE-2026-96222.html

https://explore.alas.aws.amazon.com/CVE-2026-96225.html

https://explore.alas.aws.amazon.com/CVE-2026-96231.html

https://explore.alas.aws.amazon.com/CVE-2026-96233.html

https://explore.alas.aws.amazon.com/CVE-2026-96236.html

https://explore.alas.aws.amazon.com/CVE-2026-96237.html

https://explore.alas.aws.amazon.com/CVE-2026-96958.html

https://explore.alas.aws.amazon.com/CVE-2026-96959.html

https://explore.alas.aws.amazon.com/CVE-2026-96960.html

Plugin Details

Severity: Critical

ID: 374355

File Name: al2023_ALAS2023-2026-3367.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/30/2026

Updated: 10/30/2026

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: Critical

Score: 9.4

Percentile: 99.83

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2026-111497

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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:H/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 9.2

Threat Vector: CVSS:4.0/E:A

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:aspnetcore-runtime-8.0, p-cpe:/a:amazon:linux:aspnetcore-runtime-dbg-8.0, p-cpe:/a:amazon:linux:aspnetcore-targeting-pack-8.0, p-cpe:/a:amazon:linux:dotnet-apphost-pack-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-apphost-pack-8.0, p-cpe:/a:amazon:linux:dotnet-host-debuginfo, p-cpe:/a:amazon:linux:dotnet-host, p-cpe:/a:amazon:linux:dotnet-hostfxr-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-hostfxr-8.0, p-cpe:/a:amazon:linux:dotnet-runtime-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-runtime-8.0, p-cpe:/a:amazon:linux:dotnet-runtime-dbg-8.0, p-cpe:/a:amazon:linux:dotnet-sdk-8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:amazon:linux:dotnet-sdk-8.0, p-cpe:/a:amazon:linux:dotnet-sdk-dbg-8.0, p-cpe:/a:amazon:linux:dotnet-targeting-pack-8.0, p-cpe:/a:amazon:linux:dotnet-templates-8.0, p-cpe:/a:amazon:linux:dotnet8.0-debuginfo, p-cpe:/a:amazon:linux:dotnet8.0-debugsource, p-cpe:/a:amazon:linux:dotnet, p-cpe:/a:amazon:linux:netstandard-targeting-pack-2.1

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: 10/30/2026

Vulnerability Publication Date: 10/13/2026

CISA Known Exploited Vulnerability Due Dates: 11/10/2026

Reference Information

CVE: CVE-2026-102870, CVE-2026-109468, CVE-2026-111497, CVE-2026-114148, CVE-2026-58280, CVE-2026-69651, CVE-2026-70007, CVE-2026-70159, CVE-2026-70175, CVE-2026-70179, CVE-2026-70181, CVE-2026-70183, CVE-2026-70186, CVE-2026-70197, CVE-2026-83520, CVE-2026-84008, CVE-2026-96222, CVE-2026-96225, CVE-2026-96231, CVE-2026-96233, CVE-2026-96236, CVE-2026-96237, CVE-2026-96958, CVE-2026-96959, CVE-2026-96960

IAVA: 2026-A-1124