Description
Buffer overflow in the XDMCP parsing code of GNOME gdm, KDE kdm, and wdm allows remote attackers to execute arbitrary commands or cause a denial of service via a long FORWARD_QUERY request.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- gdm 1.0.x/2.0.x BETA/2.2.0 - XDMCP Buffer Overflow (1) EDB-19947 · remote · May 22, 2000 · verified
- gdm 1.0.x/2.0.x BETA/2.2.0 - XDMCP Buffer Overflow (2) EDB-19948 · remote · May 22, 2000 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20000607 Conectiva Linux Security Announcement - gdm mailing-list
- 1279 vdb-entry
- 1370 vdb-entry
- 1233 vdb-entry
- 20000524 Security hole in gdm <= 2.0beta4-25 vendor-advisory
- 20000521 "gdm" remote hole mailing-list