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CVE-2005-2871

HighPublished

Buffer overflow in the International Domain Name (IDN) support in Mozilla Firefox 1.0.6 and earlier, and Netscape 8.0.3.3 and 7.2, allows remote attackers...

Published: Sep 9, 2005
Updated: Aug 7, 2024
Assigning CNA: redhat
Evidence observed: Sep 22, 2005

Primary CVSS

7.5/ 10High

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS probability estimate

21.1%

Moderate · next 30 days

Percentile: 97.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Buffer overflow in the International Domain Name (IDN) support in Mozilla Firefox 1.0.6 and earlier, and Netscape 8.0.3.3 and 7.2, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a hostname with all "soft" hyphens (character 0xAD), which is not properly handled by the NormalizeIDN call in nsStandardURL::BuildNormalizedSpec.

Sources

Mozilla Browsers - 0xAD (HOST:) Remote Heap Buffer Overrun (2)Exploit
Skylined · windows · Sep 22, 2005

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