Loading...
Skip to main content
GeekWala

CVE-2025-54575 — SixLabors ImageSharp Has Infinite Loop in...

MEDIUM

SixLabors ImageSharp Has Infinite Loop in GIF Decoder When Skipping Malformed Comment Extension Blocks

Published July 30, 2025Updated July 31, 2025Source: osv

Summary

### Impact A specially crafted GIF file containing a malformed comment extension block (with a missing block terminator) can cause the ImageSharp GIF decoder to enter an infinite loop while attempting to skip the block. This leads to a denial of service. Applications processing untrusted GIF input should upgrade to a patched version. ### Patches The problem has been patched. All users are advised to upgrade to v3.1.11 or v2.1.11. ### Workarounds None.

Advisory Timeline

  • First published July 30, 2025 (439 days ago).
  • Last revised July 31, 2025 — 1 day after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update SixLabors.ImageSharp to 2.1.11 or later
dotnet add package SixLabors.ImageSharp --version 2.1.11
NuGet
Update SixLabors.ImageSharp to 3.1.11 or later
dotnet add package SixLabors.ImageSharp --version 3.1.11

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
SixLabors.ImageSharp
nuget
1.0.0, 1.0.0-beta0001, 1.0.0-beta0002, 1.0.0-beta0003 (+23 more)2.1.11
SixLabors.ImageSharp
nuget
3.0.0, 3.0.1, 3.0.2, 3.1.0 (+10 more)3.1.11

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-400
    Uncontrolled Resource ConsumptionMITRE
  • CWE-770
    Allocation of Resources Without LimitsMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Frequently Asked Questions

What is CVE-2025-54575?
SixLabors ImageSharp Has Infinite Loop in GIF Decoder When Skipping Malformed Comment Extension Blocks This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.3/10).
How do I check if my project is affected by CVE-2025-54575?
CVE-2025-54575 affects SixLabors.ImageSharp. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-54575 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.3

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-rxmq-m78w-7wmc

Related CVEs

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies