{"id":"CVE-2023-24056","details":"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.","modified":"2026-04-16T04:37:26.917913677Z","published":"2023-01-22T04:15:11.617Z","related":["CGA-rrhj-jx53-jj39","SUSE-SU-2023:0611-1","openSUSE-SU-2023:0043-1","openSUSE-SU-2024:12653-1"],"references":[{"type":"ADVISORY","url":"https://github.com/pkgconf/pkgconf/tags"},{"type":"FIX","url":"https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059"},{"type":"EVIDENCE","url":"https://nullprogram.com/blog/2023/01/18/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pkgconf/pkgconf","events":[{"introduced":"0"},{"last_affected":"8754bdfe0984bc29e53ee856631a42f90f789eb4"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.9.3"}]}}],"versions":["pkgconf-0.1","pkgconf-0.1.1","pkgconf-0.2","pkgconf-0.3","pkgconf-0.4","pkgconf-0.5","pkgconf-0.5.1","pkgconf-0.5.2","pkgconf-0.5.3","pkgconf-0.6","pkgconf-0.7","pkgconf-0.8","pkgconf-0.8.1","pkgconf-0.8.10","pkgconf-0.8.11","pkgconf-0.8.12","pkgconf-0.8.2","pkgconf-0.8.3","pkgconf-0.8.4","pkgconf-0.8.7","pkgconf-0.8.8","pkgconf-0.8.9","pkgconf-0.9.0","pkgconf-0.9.1","pkgconf-0.9.10","pkgconf-0.9.11","pkgconf-0.9.12","pkgconf-0.9.2","pkgconf-0.9.3","pkgconf-0.9.4","pkgconf-0.9.5","pkgconf-0.9.6","pkgconf-0.9.7","pkgconf-0.9.8","pkgconf-0.9.9","pkgconf-1","pkgconf-1.0.1","pkgconf-1.1.0","pkgconf-1.2.0","pkgconf-1.3.0","pkgconf-1.3.1","pkgconf-1.3.2","pkgconf-1.3.3","pkgconf-1.3.4","pkgconf-1.3.5","pkgconf-1.3.6","pkgconf-1.3.7","pkgconf-1.3.90","pkgconf-1.4.0","pkgconf-1.4.1","pkgconf-1.4.2","pkgconf-1.5.1","pkgconf-1.5.2","pkgconf-1.5.3","pkgconf-1.5.4","pkgconf-1.6.0","pkgconf-1.6.1","pkgconf-1.6.2","pkgconf-1.6.3","pkgconf-1.7.0","pkgconf-1.7.1","pkgconf-1.7.2","pkgconf-1.7.3","pkgconf-1.7.4","pkgconf-1.8.0","pkgconf-1.9.0","pkgconf-1.9.1","pkgconf-1.9.2","pkgconf-1.9.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-24056.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}