Integer overflow in the createbits function in pixman-bits-image.c in Pixman before 0.32.6 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via large height and stride values.

In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterizeedges8 due to an integer overflow in pixmansamplefloory.

stress-test master commit e4c878 was discovered to contain a FPE vulnerability via the component combineinner at /pixman-combine-float.c.

Integer underflow in the pixmantrapezoidvalid macro in pixman.h in Pixman before 0.32.0, as used in X.Org server and cairo, allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.

Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.