CVE-2018-5709

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.

• CWE-190

• https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Integer%20OverflowThird Party Advisory
• https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
• https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Integer%20OverflowThird Party Advisory
• https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E

Published

Jan 16, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-5702Transmission through 2.92 relies on X-Transmission-Session-I…
• CVE-2018-5703The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in …9.8
• CVE-2018-5704Open On-Chip Debugger (OpenOCD) 0.10.0 does not block attemp…
• CVE-2018-5705Reservo Image Hosting 1.6 is vulnerable to XSS attacks. The …
• CVE-2018-5706An issue was discovered in Octopus Deploy before 4.1.9. Any …
• CVE-2018-5708An issue was discovered on D-Link DIR-601 B1 2.02NA devices.…
• CVE-2018-5710An issue was discovered in MIT Kerberos 5 (aka krb5) through…
• CVE-2018-5711gd_gif_in.c in the GD Graphics Library (aka libgd), as used …
• CVE-2018-5712An issue was discovered in PHP before 5.6.33, 7.0.x before 7…
• CVE-2018-5713In Malwarefox Anti-Malware 2.72.169, the driver file (zam64.…
• CVE-2018-5714In Malwarefox Anti-Malware 2.72.169, the driver file (zam64.…
• CVE-2018-5715phprint.php in SugarCRM 3.5.1 has XSS via a parameter name i…