Description
The emulated floppy disk controller in Bochs 2.3 allows local users of the guest operating system to cause a denial of service (virtual machine crash) via unspecified vectors, resulting in a divide-by-zero error.
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 | bochs | No fix yet | — |
| Debian 13 | bochs | No fix yet | — |
| Debian 12 | bochs | No fix yet | — |
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
- Bochs 2.3 - Buffer Overflow (Denial of Service) (PoC) EDB-30110 · dos · May 31, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://bugs.gentoo.org/show_bug.cgi?id=188148
- 27715 third-party-advisory
- http://taviso.decsystem.org/virtsec.pdf
- 42119 vdb-entry
- GLSA-200711-21 vendor-advisory
- 24246 vdb-entry
- ADV-2007-1936 vdb-entry
- bochs-floppy-disk-dos(34513) vdb-entry
- 25470 third-party-advisory