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Ubuntu 22.04 LTS / 23.10 : .NET vulnerabilities (USN-6634-1)

high Nessus Plugin ID 190494

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 22.04 LTS / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6634-1 advisory.

 Brennan Conroy discovered that .NET with SignalR did not properly handle malicious clients. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-21386)

 Bahaa Naamneh discovered that .NET with OpenSSL support did not properly parse X509 certificates. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-21404)

Tenable has extracted the preceding description block directly from the Ubuntu 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

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-6634-1

Plugin Details

Severity: High

ID: 190494

File Name: ubuntu_USN-6634-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2/13/2024

Updated: 8/27/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2024-21404

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:canonical:ubuntu_linux:dotnet-host-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-sdk-6.0, p-cpe:/a:canonical:ubuntu_linux:netstandard-targeting-pack-2.1-7.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-hostfxr-7.0, p-cpe:/a:canonical:ubuntu_linux:aspnetcore-runtime-6.0, p-cpe:/a:canonical:ubuntu_linux:aspnetcore-runtime-7.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-sdk-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-targeting-pack-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-targeting-pack-7.0, p-cpe:/a:canonical:ubuntu_linux:dotnet7, p-cpe:/a:canonical:ubuntu_linux:dotnet-runtime-6.0, p-cpe:/a:canonical:ubuntu_linux:aspnetcore-runtime-8.0, p-cpe:/a:canonical:ubuntu_linux:aspnetcore-targeting-pack-8.0, p-cpe:/a:canonical:ubuntu_linux:aspnetcore-targeting-pack-6.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-apphost-pack-7.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-apphost-pack-6.0, p-cpe:/a:canonical:ubuntu_linux:netstandard-targeting-pack-2.1, p-cpe:/a:canonical:ubuntu_linux:dotnet-apphost-pack-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-runtime-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet8, p-cpe:/a:canonical:ubuntu_linux:dotnet-host-7.0, p-cpe:/a:canonical:ubuntu_linux:netstandard-targeting-pack-2.1-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-templates-7.0, p-cpe:/a:canonical:ubuntu_linux:aspnetcore-targeting-pack-7.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-hostfxr-6.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-hostfxr-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-templates-8.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-templates-6.0, cpe:/o:canonical:ubuntu_linux:23.10, p-cpe:/a:canonical:ubuntu_linux:dotnet-runtime-7.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-sdk-6.0-source-built-artifacts, p-cpe:/a:canonical:ubuntu_linux:dotnet-sdk-7.0-source-built-artifacts, p-cpe:/a:canonical:ubuntu_linux:dotnet-host, p-cpe:/a:canonical:ubuntu_linux:dotnet6, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:dotnet-targeting-pack-6.0, p-cpe:/a:canonical:ubuntu_linux:dotnet-sdk-7.0

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 2/13/2024

Vulnerability Publication Date: 2/13/2024

Reference Information

CVE: CVE-2024-21386, CVE-2024-21404

IAVA: 2024-A-0089-S, 2024-A-0093

USN: 6634-1