{"id":"DEBIAN-CVE-2020-23914","details":"An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.","modified":"2026-09-01T16:04:59.737840381Z","published":"2021-04-21T18:15:08.237Z","upstream":["CVE-2020-23914"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2020-23914"}],"affected":[{"package":{"name":"retroarch","ecosystem":"Debian:12","purl":"pkg:deb/debian/retroarch?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.14.0+dfsg-1","1.15.0+dfsg-1","1.16.0.3+dfsg-1","1.18.0+dfsg-1","1.19.1+dfsg-1","1.20.0+dfsg-1","1.20.0+dfsg-2","1.20.0+dfsg-3","1.22.2+dfsg-1","1.22.2+dfsg-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-23914.json"}},{"package":{"name":"retroarch","ecosystem":"Debian:13","purl":"pkg:deb/debian/retroarch?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.0+dfsg-2","1.20.0+dfsg-3","1.22.2+dfsg-1","1.22.2+dfsg-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-23914.json"}},{"package":{"name":"retroarch","ecosystem":"Debian:14","purl":"pkg:deb/debian/retroarch?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.0+dfsg-2","1.20.0+dfsg-3","1.22.2+dfsg-1","1.22.2+dfsg-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-23914.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}