CVE-2026-104064
Description
A flaw was found in Scribus. An integer overflow in the Tagged Image File Format (TIFF) loader allows an attacker to trigger a heap buffer overflow by convincing a user to import a maliciously crafted TIFF image with oversized tile dimensions. Successful exploitation could allow arbitrary code execution or cause the application to crash, resulting in a Denial of Service (DoS).
Statement
An integer overflow in Scribus's scimgdataloader_tiff TIFF loader allows a heap buffer overflow when a user imports a crafted tiled TIFF image with oversized tile dimensions. Successful exploitation can crash Scribus or execute arbitrary code with the user's privileges. Fixed in Scribus 1.6.7 (1.6.x series) and 1.7.4 (1.7.x series).
Mitigation
Avoid importing TIFF images from untrusted sources; update to Scribus 1.6.7 (1.6.x) or 1.7.4 (1.7.x).
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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