High advisory for Scribus

Advisory overview

Scribus before 1.6.7 contains an out-of-bounds memory access vulnerability in the importsvm plugin that fails to verify bitmap and transparency mask dimensions match. Attackers can supply a crafted SVM file with mismatched mask dimensions to trigger heap reads and writes, causing crashes or code execution as the user.

Related references

• https://github.com/scribusproject/scribus
• https://github.com/scribusproject/scribus/commit/c6aed467680d04e8ae8e0588579b095acdae40ef
• https://wiki.scribus.net/canvas/1.6.7_Release
• https://www.vulncheck.com/advisories/scribus-before-1.6.7-out-of-bounds-memory-access-via-svm-import-plugin