An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.
github.com/python-pillow/Pillow
github.com/python-pillow/Pillow/commit/3fee28eb9479bf7d59e0fa08068f9cc4a6e2f04c
github.com/python-pillow/Pillow/commit/cbfdde7b1f2295059a20a539ee9960f0bec7b299
nvd.nist.gov/vuln/detail/CVE-2021-25289
pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html
security.gentoo.org/glsa/202107-33