In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculations.
https://pillow.readthedocs.io/en/stable/releasenotes/index.html
https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html
Source: MITRE
Published: 2021-01-12
Updated: 2022-04-22
Type: CWE-125
Base Score: 5.8
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P
Impact Score: 4.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 7.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Impact Score: 4.2
Exploitability Score: 2.8
Severity: HIGH