Leptonica before 1.80.0 allows a heap-based buffer over-read in pixFewColorsOctcubeQuantMixed in colorquant1.c.Referenceshttps://github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22140https://github.com/DanBloomberg/leptonica/commit/5ee24b398bb67666f6d173763eaaedd9c36fb1e5https://lists.debian.org/debian-lts-announce/2021/03/msg00037.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD5AIWHWE334HGYZJR2U3I3JYKSSO2LW/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQUEA2X6UTH4DMYCMZAWE2QQLN5YANUA/https://security.gentoo.org/glsa/202107-53
