In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconftupleparse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes.
{ "binaries": [ { "binary_name": "pkgconf", "binary_version": "0.9.12-1" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-24056.json"
{ "binaries": [ { "binary_name": "pkgconf", "binary_version": "0.9.12-6" } ] }
{ "binaries": [ { "binary_name": "libpkgconf", "binary_version": "1.6.3-5" }, { "binary_name": "libpkgconf-dev", "binary_version": "1.6.3-5" }, { "binary_name": "libpkgconf3", "binary_version": "1.6.3-5" }, { "binary_name": "pkgconf", "binary_version": "1.6.3-5" } ] }
{ "binaries": [ { "binary_name": "libpkgconf", "binary_version": "1.8.0-1" }, { "binary_name": "libpkgconf-dev", "binary_version": "1.8.0-1" }, { "binary_name": "libpkgconf3", "binary_version": "1.8.0-1" }, { "binary_name": "pkgconf", "binary_version": "1.8.0-1" } ] }