The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.
https://support.apple.com/kb/HT212327
https://support.apple.com/kb/HT212326
https://support.apple.com/kb/HT212325
https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html
https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231
Published: 2020-11-04
Updated: 2023-11-07
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
Base Score: 9.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: Critical