Description
The iSNS dissector for Ethereal 0.10.3 through 0.10.4 allows remote attackers to cause a denial of service (process abort) via an integer overflow.
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 3 | ethereal +1 | 0.10.5-0.30E.2 | RHSA-2004:378 |
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
- Ethereal 0.x - Multiple iSNS / SMB / SNMP Protocol Dissector Vulnerabilities EDB-24259 · remote · Aug 5, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- RHSA-2004:378 Red Hat Security Advisory: ethereal security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 1010655 vdb-entry
- CLA-2005:916 vendor-advisory
- MDKSA-2004:067 vendor-advisory
- http://www.ethereal.com/appnotes/enpa-sa-00015.html
- VU#829422 third-party-advisory
- 12024 third-party-advisory
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=127381
- ethereal-isns-dos(16630) vdb-entry
- FEDORA-2004-219 vendor-advisory
- FEDORA-2004-220 vendor-advisory
- RHSA-2004:378 vendor-advisory
- oval:org.mitre.oval:def:9931 vdb-entry signature
- GLSA-200407-08 vendor-advisory