Description
The VStr::Resize function in str.cpp in Vavoom 1.24 and earlier allows remote attackers to cause a denial of service (daemon crash) via a string with a negative NewLen value within a certain UDP packet that triggers an assertion error.
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
- Vavoom 1.24 - str.cpp VStr::Resize Function Crafted UDP Packet Remote Denial of Service EDB-30527 · dos · Aug 24, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 26701 third-party-advisory
- http://aluigi.altervista.org/adv/vaboom2-adv.txt
- FEDORA-2007-1977 vendor-advisory
- 3057 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=256621
- 26554 third-party-advisory
- 25436 vdb-entry