Description
Stack-based buffer overflow in the CL_ParseDownload function of Quake 3 Engine 1.32c and earlier, as used in multiple products, allows remote attackers to execute arbitrary code via a svc_download command with compressed data that triggers the overflow during expansion.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ioquake3 | 1.36+svn1788j-1 | — |
| Debian 13 | ioquake3 | 1.36+svn1788j-1 | — |
| Debian 12 | ioquake3 | 1.36+svn1788j-1 | — |
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 1
- Quake 3 Engine - 'CL_ParseDownload' Remote Buffer Overflow EDB-27969 · dos · Jun 5, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://aluigi.altervista.org/adv/q3cbof-adv.txt
- 18271 vdb-entry
- 1016219 vdb-entry
- ADV-2006-2129 vdb-entry
- 20401 third-party-advisory
- 20060602 Client buffer-overflow in Quake 3 engine (1.32c / rev 795) mailing-list