High advisory for Scribus

Advisory overview

Scribus before 1.6.7 contains a heap out-of-bounds write vulnerability in the scimgdataloader_psd loader that uses unchecked PSD file values as lookup array indexes. Attackers can convince users to place or import a crafted PSD file to corrupt heap memory, causing crashes and potentially code execution as the user.

Related references

• https://github.com/scribusproject/scribus
• https://github.com/scribusproject/scribus/commit/cca3e4991dd199c103edb4a3bc5351f5cb88d62b
• https://wiki.scribus.net/canvas/1.6.7_Release
• https://www.vulncheck.com/advisories/scribus-before-1.6.7-heap-out-of-bounds-write-via-psd-image-loader