Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-73197: A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service. CVE-2026-19550: A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust object rather than a trust-administration permission, allowing an authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, resulting in unauthorized, attacker-controlled modification of trusted-domain and ID-range identity data in the IPA LDAP directory. CVE-2026-18147: A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, the attacker could inject and execute arbitrary JavaScript code. This allows the attacker to perform actions within the victim's authenticated session, potentially leading to full administrative control if an IdM administrator is targeted.
Fixed packages 12
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | ipa-client | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-client-common | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-common | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-debuginfo | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-python-compat | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-server | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-server-common | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-server-dns | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | ipa-server-trust-ad | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | python2-ipaclient | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | python2-ipalib | 0:4.6.8-5.amzn2.17.8 |
| Amazon Linux · 2 | python2-ipaserver | 0:4.6.8-5.amzn2.17.8 |
Vulnerabilities 3
-
High 8.2
Freeipa: ipa: freeipa: trust-fetch-domains uses trust-read aci to gate a privileged ad trust refresh, allowing unauthorized ldap writes
A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust object rather than a trust-administration permission, allowing an authenticated, non-privileged IPA user to trigger a privileged Active Directory trus…
-
High 8.1
Freeipa: ipa: freeipa/idm: cross-site scripting vulnerability allows arbitrary code execution via crafted url
A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, t…
-
High 7.5
Ipa: freeipa: unauthenticated dos in `/ipa/migration/migration.py` via unbounded request body read
A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodi…