CVE-2026-14612

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

4.2 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-16/8/2026

CWE

CWE-787

קישורים

• https://access.redhat.com/security/cve/CVE-2026-14612
• https://bugzilla.redhat.com/show_bug.cgi?id=2496879