Vulnerabilidade Uncontrolled Resource Consumption

[vinisec]

Descreva a vulnerabilidade de segurança (se houver CVE, coloque como
referência)

CVE-2021-28677

An issue was discovered in Pillow before 8.2.0. For EPS data, the readline implementation used in EPSImageFile has to deal with any combination of \r and \n as line endings. It used an accidentally quadratic method of accumulating lines while looking for a line ending. A malicious EPS file could use this to perform a DoS of Pillow in the open phase, before an image was accepted for opening.

References
https://nvd.nist.gov/vuln/detail/CVE-2021-28677
python-pillow/Pillow#5377
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28677-fix-eps-dos-on-open
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
https://security.gentoo.org/glsa/202107-33
https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html

Classifique a prioridade de correção, de acordo com a severidade da
vulnerabilidade 30 dias