SB2026051480 - Fedora 44 update for dotnet9.0

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Main Vulnerability Database SB2026051480

SB2026051480 - Fedora 44 update for dotnet9.0

Published: May 14, 2026

Security Bulletin ID SB2026051480
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Path traversal (CVE-ID: CVE-2026-32175)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in .NET Core. A remote user can send a specially crafted HTTP request and write arbitrary files on the system.


2) Heap-based buffer overflow (CVE-ID: CVE-2026-32177)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to escalate privileges on the target system.

The vulnerability exists due to a boundary error in .NET. A local attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and gain elevated privileges on the system.


3) Input validation error (CVE-ID: CVE-2026-35433)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to escalate privileges on the target system.

The vulnerability exists due to insufficient validation of user-supplied input in .NET. A local attacker can gain elevated privileges on the system.


4) Infinite loop (CVE-ID: CVE-2026-42899)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in ASP.NET Core. A remote attacker can consume all available system resources and cause denial of service conditions.


Remediation

Install update from vendor's website.

References