Back
CVE-2005-2871
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…
High7.5EPSS 21.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Timeline
ID reserved
By redhat
Published
- 19 years later
· 19 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 21.1% · top 2.4% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (37)
- VU#573857 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- DSA-868 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- ADV-2005-1824 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- FLSA-2006:168375 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- ADV-2005-1690 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 83 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 16767 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:1287 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ADV-2005-1691 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 16764 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-837 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- oval:org.mitre.oval:def:584 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- USN-181-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2005:791 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 17042 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 14784 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- oval:org.mitre.oval:def:9608 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 16766 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-866 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://www.security-protocols.com/advisory/sp-x17-advisory.txt (opens in a new tab)x_refsource_MISCx_transferred
- 20050911 FireFox "Host:" Buffer Overflow is not just exploitable on FireFox (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- RHSA-2005:769 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 1014877 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://www.mozilla.org/security/announce/mfsa2005-57.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.securiteam.com/securitynews/5RP0B0UGVW.html (opens in a new tab)x_refsource_MISCx_transferred
- 17284 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 19255 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 17263 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2005:768 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- P-303 (opens in a new tab)third-party-advisorygovernment-resourcex_refsource_CIACx_transferred
- GLSA-200509-11 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- http://www.security-protocols.com/firefox-death.html (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=307259 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDKSA-2005:174 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 17090 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20050909 Mozilla Firefox "Host:" Buffer Overflow (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- mozilla-url-bo(22207) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2005-2871)Record last updated .