Heap-Use-After-Free Vulnerability in kimageformats Package
Summary
OSV-2026-822: Heap-use-after-free in slice_segment_header::operator=. Affects kimageformats versions >= 9ddad1676718f8c12f72a8ac7357552586f1a9a7, < f450e5c9a9c31ed0b49f0f6fe3d38b7864013222. Fixed in f450e5c9a9c31ed0b49f0f6fe3d38b7864013222. How to fix ↓
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Background
The kimageformats package is a part of the KDE Frameworks, providing support for various image formats in applications. It allows developers to easily integrate image processing capabilities into their software. However, like many software libraries, it can be susceptible to vulnerabilities that may compromise the integrity and security of applications using it.
Vulnerability Detail
This vulnerability is classified as a heap-use-after-free issue, which occurs when a program continues to use a memory location after it has been freed. Specifically, this vulnerability arises in the slice_segment_header::operator= function, leading to potential crashes or exploitation. The origin of this vulnerability was reported through OSS-Fuzz, indicating that it can lead to a crash state during image processing tasks, which may allow an attacker to execute arbitrary code or cause denial of service.
How To Fix
Minimum fixed version
f450e5c9a9c31ed0b49f0f6fe3d38b7864013222
This is the first release that contains the fix.
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Workaround
As a temporary workaround, consider avoiding the use of the affected functions in the kimageformats package until the update can be applied. Additionally, ensure that your application includes proper error handling to mitigate potential crashes.
Conclusion
The heap-use-after-free vulnerability in the kimageformats package poses significant risks to applications utilizing this library. It is crucial to update to the patched version to ensure security and stability. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
See every vulnerability recorded for kimageformats →
FAQ
A heap-use-after-free vulnerability occurs when a program continues to access memory that has already been freed, potentially leading to crashes or exploitation.
You can use Vulert, which monitors open-source vulnerabilities in real-time. By uploading your manifest file like package-lock.json, you can check for vulnerabilities without needing to access the code.
The risks include potential crashes, data corruption, and the possibility of arbitrary code execution, which can compromise the security of applications.
While the best solution is to update to the patched version, you can temporarily avoid using the affected functions and implement robust error handling in your application.
More information can be found in the OSS-Fuzz report linked in the vulnerability details, which provides insights into the crash state and technical aspects.
References
Related vulnerabilities
Recent vulnerabilities recorded for kimageformats.
