CVE-2026-4985
Received Received - Intake
Integer Overflow in dloebl CGIF GIF Handler Enables Remote Attack

Publication date: 2026-03-27

Last updated on: 2026-03-27

Assigner: VulDB

Description
A vulnerability was identified in dloebl CGIF up to 0.5.2. This vulnerability affects the function cgif_addframe of the file src/cgif.c of the component GIF Image Handler. The manipulation of the argument width/height leads to integer overflow. The attack may be initiated remotely. The identifier of the patch is b0ba830093f4317a5d1f345715d2fa3cd2dab474. It is suggested to install a patch to address this issue.
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Meta Information
Published
2026-03-27
Last Modified
2026-03-27
Generated
2026-06-16
AI Q&A
2026-03-28
EPSS Evaluated
2026-06-14
NVD
CVE-2026-4985
EUVD
EUVD-2026-16894
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
dloebl cgif to 0.5.2 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-189
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
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Executive Summary

This vulnerability exists in the dloebl CGIF software up to version 0.5.2, specifically in the function cgif_addframe within the src/cgif.c file of the GIF Image Handler component. It is caused by the manipulation of the width and height arguments, which leads to an integer overflow. This overflow can be exploited remotely by an attacker.

An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside the range that can be represented with a given number of bits, potentially causing unexpected behavior or security issues.

Impact Analysis

The vulnerability can be exploited remotely and may lead to a denial of service or other availability impacts, as indicated by the CVSS scores which show an impact on availability (A:L or A:P). However, it does not affect confidentiality or integrity.

Since the vulnerability involves integer overflow in image handling, an attacker might cause the application to crash or behave unpredictably, potentially disrupting service.

Mitigation Strategies

The suggested immediate step to mitigate this vulnerability is to install the patch identified by commit b0ba830093f4317a5d1f345715d2fa3cd2dab474.

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