Description
The tvb_get_nstringz0 function in Ethereal 0.9.12 and earlier does not properly handle a zero-length buffer size, with unknown consequences.
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 3.0 | ethereal | 0.9.4-1woody5 | DSA-324 |
Advisories 1
- DSA-324 ethereal - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2003:077 vendor-advisory
- CLA-2003:662 vendor-advisory
- DSA-324 vendor-advisory
- oval:org.mitre.oval:def:101 vdb-entry signature
- 9007 third-party-advisory
- http://www.ethereal.com/appnotes/enpa-sa-00010.html