make_ftp_cmd in main.c in ProFTPD before 1.3.8a has a one-byte out-of-bounds read, and daemon crash, because of mishandling of quote/backslash semantics.
https://github.com/proftpd/proftpd/issues/1683#issuecomment-1712887554
https://github.com/proftpd/proftpd/issues/1683
https://github.com/proftpd/proftpd/blob/1.3.8/NEWS
Source: Mitre, NVD
Published: 2023-12-22
Updated: 2024-01-08
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H