CVE-2026-110601
Description
A flaw was found in libsixel. This vulnerability allows an attacker to cause memory corruption and application crashes, resulting in a Denial of Service (DoS), by tricking an application into processing a specially crafted GIF image. The issue occurs because the image parser fails to validate the transparent color index against the allocated color palette size, causing out-of-bounds data to be written to heap memory.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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