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CVE-2021-28677

Public on 2021-06-02
Modified on 2024-02-07
Description

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.

Severity
Important
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CVSS v3 Base Score
5.3
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core python-pillow 2023-06-05 16:39 ALAS2-2023-2083
Amazon Linux 2023 python-pillow 2023-03-20 18:27 ALAS2023-2023-146

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2021-28677 Mitre: CVE-2021-28677 FAQs regarding Amazon Linux ALAS/CVE Severity