Security update for python-Pillow

Open Source Vulnerabilities SUSE-SU-2021:1939-1

This update for python-Pillow fixes the following issues: - CVE-2021-25292: Fixed a backtracking regex in PDF parser could be used as a DOS attack (bsc#1183101). - CVE-2021-25290: Fixed a negative-offset memcpy with an invalid size in TiffDecode.c (bsc#1183105). - CVE-2021-27922,CVE-2021-27923: Fixed improper reported size of a contained image (bsc#1183108,bsc#1183107) - CVE-2020-35653: Fixed buffer over-read in PcxDecode when decoding a crafted PCX file (bsc#1180834). - CVE-2021-25287: Fixed out-of-bounds read in J2kDecode in j2ku_graya_la (bsc#1185805). - CVE-2021-25288: Fixed out-of-bounds read in J2kDecode in j2ku_gray_i (bsc#1185803). - CVE-2021-28675: Fixed DoS in PsdImagePlugin (bsc#1185804). - CVE-2021-28677: Fixed DoS in the open phase via a malicious EPS file (bsc#1185785). - CVE-2021-28676: Fixed infinite loop in FliDecode.c (bsc#1185786).