Description
The SPNEGO dissector in Ethereal 0.9.8 to 0.10.3 allows remote attackers to cause a denial of service (crash) via unknown attack vectors that cause a null pointer dereference.
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 | 0.10.3-0.30E.2 | RHSA-2004:234 |
Advisories 1
- RHSA-2004:234 Red Hat Security Advisory: ethereal security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 11776 third-party-advisory
- CLA-2005:916 vendor-advisory
- 10347 vdb-entry
- 11608 third-party-advisory
- 11836 third-party-advisory
- http://www.ethereal.com/appnotes/enpa-sa-00014.html
- RHSA-2004:234 vendor-advisory
- oval:org.mitre.oval:def:987 vdb-entry signature
- oval:org.mitre.oval:def:9695 vdb-entry signature
- O-150 third-party-advisory government-resource
- ethereal-spnego-dos(16151) vdb-entry
- GLSA-200406-01 vendor-advisory
- 1010158 vdb-entry