Description
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nsauditor | DNSS Domain Name Search Software | 2.1.8 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | dnss | No fix yet | — |
| Ubuntu 26.04 LTS | dnss | No fix yet | — |
| Ubuntu 25.10 | dnss | No fix yet | — |
| Ubuntu 20.04 LTS | dnss | No fix yet | — |
| Ubuntu 18.04 LTS | dnss | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | dnss | No fix yet | — |
| Ubuntu Pro 22.04 LTS | dnss | No fix yet | — |
References
- ExploitDB-46831 exploit
- Product Reference product
- VulnCheck Advisory: DNSS Domain Name Search Software 2.1.8 Denial of Service third-party-advisory