Leptonica before 1.80.0 allows a heap-based buffer over-read in findNextBorderPixel in ccbord.c.
bugs.chromium.org/p/oss-fuzz/issues/detail?id=23433
github.com/DanBloomberg/leptonica/commit/8d6e1755518cfb98536d6c3daf0601f226d16842
github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0
lists.debian.org/debian-lts-announce/2021/03/msg00037.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQUEA2X6UTH4DMYCMZAWE2QQLN5YANUA/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD5AIWHWE334HGYZJR2U3I3JYKSSO2LW/
security.gentoo.org/glsa/202107-53