CVE-2024-32035 Memory Allocation with Excessive Size Value in SixLabors.ImageSharp
Attackers can cause denial of service by exhausting memory via specially crafted image files processed by the ImageSharp library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-32035?
CVE-2024-32035 is a medium-severity denial of service vulnerability in SixLabors ImageSharp, published on 15 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ImageSharp is a 2D graphics API. A vulnerability discovered in the ImageSharp library, where the processing of specially crafted files can lead to excessive memory usage in image decoders. The vulnerability is triggered when ImageSharp attempts to process image files that are designed to exploit this flaw. This flaw can be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on ImageSharp for image processing tasks. Users and administrators are advised to update to the latest version of ImageSharp that addresses this vulnerability to mitigate the risk of exploitation. The problem has been patched in v3.1.4 and v2.1.8.
Which versions are affected by CVE-2024-32035?
4 open source packages ship an affected version, including SixLabors.ImageSharp. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
SixLabors.ImageSharp NuGet | All versions | 2.1.8 |
SixLabors.ImageSharp NuGet | All versions | 2.1.8 |
SixLabors.ImageSharp NuGet | From 3.0.0 | 3.1.4 |
SixLabors.ImageSharp NuGet | From 3.0.0 | 3.1.4 |
Products include Sixlabors Imagesharp.
How do I fix CVE-2024-32035?
Upgrade SixLabors.ImageSharp to a fixed version for your release line: 2.1.8 or 3.1.4.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-32035 being exploited?
There is no known exploitation of CVE-2024-32035 in the wild and no public exploit code.
Other vulnerabilities in SixLabors ImageSharp
- CVE-2026-106110 ImageSharp: TIFF CCITT T4 encoder can write past its compressed output buffer
- CVE-2026-106112 ImageSharp: ICC LUT16 output channel count can write beyond Vector4
- CVE-2026-106113 ImageSharp: HistogramEqualization uses an unvalidated luminance as an unchecked histogram index
- CVE-2026-106115 ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer
- CVE-2026-106117 ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp
Sources
Also known as ECHO-208b-d6b3-dfb9, GHSA-g85r-6x2q-45w7.