nfs_lookup_reply in net/nfs.c in Das U-Boot through 2022.04 (and through 2022.07-rc2) has an unbounded memcpy with a failed length check, leading to a buffer overflow. NOTE: this issue exists because of an incorrect fix for CVE-2019-14196.
It seems these references are duplicated from CVE-2019-14192 but with
the new email and a new comment on the commit. From that comment:
"Xeno Kovah (@XenoKovah) found this bypass and is presented as a case
study in the course "Vulnerabilities 1001 - OST2". After dynamically
verifying the bypass, I am merely reporting the discovery (tested with
some dirty code that I hope would never see the sun's light)."
Somewhat troubling that this kind of thing would be exploited in the
wild in public and not be reported upstream properly.