libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction. References: https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674
Created libass tracking bugs for this issue: Affects: epel-all [bug 1985248] Affects: fedora-all [bug 1985247]