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…

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.

Scores

EPSS (exploitation in 30 days)

21.1% · top 2.4% of all CVEs (3 Nov 2026)

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

[![CVE-2005-2871](https://trackcve.app/badge/CVE-2005-2871.svg)](https://trackcve.app/cve/CVE-2005-2871)

Record last updated 7 Aug 2024, 22:53 UTC.