{"id":81457,"date":"2026-07-03T18:41:02","date_gmt":"2026-07-03T15:11:02","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-14612-freeipa-ipa-idm-freeipa-off-by-one-buffer-overflows-in-ipa-otpd-oauth2-c-during-oauth2-device-authorization\/"},"modified":"2026-07-03T18:41:02","modified_gmt":"2026-07-03T15:11:02","slug":"cve-2026-14612-freeipa-ipa-idm-freeipa-off-by-one-buffer-overflows-in-ipa-otpd-oauth2-c-during-oauth2-device-authorization","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-14612-freeipa-ipa-idm-freeipa-off-by-one-buffer-overflows-in-ipa-otpd-oauth2-c-during-oauth2-device-authorization\/","title":{"rendered":"CVE-2026-14612 &#8211; Freeipa: ipa: idm: freeipa: off-by-one buffer overflows in ipa-otpd oauth2.c during oauth2 device authorization"},"content":{"rendered":"<p>CVE ID :CVE-2026-14612<\/p>\n<p>  Published : July 3, 2026, 3:11 p.m. | 2\u00a0hours, 36\u00a0minutes ago<\/p>\n<p>  Description :Two off-by-one errors in the FreeIPA ipa-otpd daemon&#8217;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.<\/p>\n<p>  Severity: 4.2 | MEDIUM<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-14612 Published : July 3, 2026, 3:11 p.m. | 2\u00a0hours, 36\u00a0minutes ago Description :Two off-by-one errors in the FreeIPA ipa-otpd daemon&#8217;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 &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-81457","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81457","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=81457"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81457\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}