In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes. CREATE(Triage):(User=admin) CVE-2023-24056 (https://nvd.nist.gov/vuln/detail/CVE-2023-24056)
