In libImaging/SgiRleDecode.c in Pillow through 7.0.0, a number of out-of-bounds reads exist in the parsing of SGI image files, a different issue than CVE-2020-5311.
{
"cpes": [
"cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*"
],
"severity": "High"
}