{"id":"UBUNTU-CVE-2022-42898","details":"PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has \"a similar bug.\"","modified":"2026-05-20T16:08:25.704037416Z","published":"2022-12-25T06:15:00Z","related":["USN-5800-1","USN-5822-1","USN-5822-2","USN-5828-1","USN-5936-1","USN-7582-1"],"upstream":["CVE-2022-42898"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-42898"},{"type":"REPORT","url":"https://www.samba.org/samba/security/CVE-2022-42898.html"},{"type":"REPORT","url":"https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5800-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5822-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5822-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5828-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5936-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-42898"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7582-1"}],"affected":[{"package":{"name":"heimdal","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/heimdal?arch=source&distro=trusty%2Fesm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6~git20131207+dfsg-1ubuntu1.2+esm3"}]}],"versions":["1.6~git20120403+dfsg1-3ubuntu0.1","1.6~git20120403+dfsg1-3ubuntu0.2","1.6~git20131207+dfsg-1ubuntu1","1.6~git20131207+dfsg-1ubuntu1.1","1.6~git20131207+dfsg-1ubuntu1.2","1.6~git20131207+dfsg-1ubuntu1.2+esm1","1.6~git20131207+dfsg-1ubuntu1.2+esm2"],"ecosystem_specific":{"availability":"Available 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