Description (CNA)
Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the origin superuser, due to features like shared_preload_libraries. Hence, the attack has practical implications only if one takes relevant action between these commands and server start, like moving the files to a different VM or snapshotting the VM. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / PostgreSQL | affected 18 before 18.4; affected 17 before 17.10; affected 16 before 16.14; affected 15 before 15.18; affected 0 before 14.23 |
CWE
CWE-61
References
ADP enrichment
No English description supplied.
No references supplied.