{"id":"DEBIAN-CVE-2026-14612","details":"Two off-by-one errors in the FreeIPA ipa-otpd daemon's OAuth2 device authorization handler can cause out-of-bounds memory access when processing an oversized response from a configured external OAuth2/OIDC Identity Provider. An attacker who controls or can man-in-the-middle the IdP endpoint may be able to trigger ipa-otpd to write or read one byte past the end of a fixed-size buffer. Exploitation requires FreeIPA to be configured with an external IdP, attacker control or MITM of that IdP, and a user to initiate the OAuth2 device authorization flow. The most likely impact is limited denial of service affecting the ipa-otpd daemon.","modified":"2026-09-14T17:02:29.142329505Z","published":"2026-07-03T16:16:54.470Z","upstream":["CVE-2026-14612"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-14612"}],"affected":[{"package":{"name":"freeipa","ecosystem":"Debian:12","purl":"pkg:deb/debian/freeipa?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.10.1+dfsg1-1+exp1","4.10.1-1+exp1","4.10.2-1","4.10.2-2","4.10.2-2+exp1","4.11.1-1","4.11.1-1+exp1","4.11.1-2","4.11.1-2+exp1","4.11.1-2.1","4.12.2-1","4.12.2-2","4.12.2-3","4.12.4-1","4.12.4-2","4.13.1-1","4.9.11-1","4.9.11-1+exp1","4.9.11-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14612.json"}},{"package":{"name":"freeipa","ecosystem":"Debian:13","purl":"pkg:deb/debian/freeipa?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.4-1","4.12.4-2","4.13.1-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14612.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L"}]}