Samsung rlottie Resource and Overflow Vulnerabilities

Uncontrolled resource consumption in Samsung's open-source rlottie library allows a crafted Lottie animation file to trigger excessive memory allocation, crashing any application that renders it. The root cause is unbounded amplification in the shape/repeater content tree: nested repeaters multiplied by point-heavy shapes (polystar, custom paths) can cause allocations that scale combinatorially with file complexity. All rlottie versions prior to the fix in GitHub PR #599 are affected; no patch release version is independently confirmed. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.

Heap buffer overflow in Samsung's rlottie animation rendering library allows remote denial-of-service via maliciously crafted Lottie animation files. An integer overflow in the 32-bit bitmap stride calculation inside vbitmap.cpp produces an undersized heap allocation; when the library then writes full-dimension pixel data into this allocation, heap corruption and application crash result. No public exploit has been identified at time of analysis, but any application embedding rlottie that renders untrusted animation content is exposed given the network-deliverable, user-interaction attack path reflected in CVSS PR:N/UI:R.