CVE-2005-2871
published 2005-09-09CVE-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 remote attackers to…
PriorityP347high7.5CVSS 2.0
AVNACLAuNCPIPAP
EXPLOIT
EPSS
21.11%
97.6th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
| mozilla | firefox | — | — |
Detection & IOCsextracted from sources · hover to see the quote
bytes↗
0xAD (soft hyphen character used as hostname payload)
- →Detect URLs/hostnames composed entirely of soft-hyphen characters (0xAD) in HTTP requests, which trigger the IDN heap buffer overrun in nsStandardURL::BuildNormalizedSpec via the NormalizeIDN call. ↗
- →Monitor for outbound connections to port 28876, which is the bind-shell port dropped by the exploit's shellcode upon successful exploitation. ↗
- →Detect heap spray patterns: large numbers of Image objects created via setInterval with a malicious src URL containing 0xAD-padded hostnames, consistent with the exploit's technique of continuously creating image objects to trigger the overflow. ↗
- →Heap spray fills memory from approximately 0x02000000 to 0x28081976; memory forensics or crash analysis showing EIP/call targets in this range may indicate exploitation of this CVE. ↗
- ·The exploit is described as optimized for Firefox and only rarely works against Netscape, so detection tuning may differ by browser target. ↗
CVSS provenance
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vendor_redhat7.5HIGH
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GHSA
GHSA-h4c5-jq2c-gq8v: Buffer overflow in the International Domain Name (IDN) support in Mozilla Firefox 1
ghsa_unreviewed·2022-05-01
CVE-2005-2871 [HIGH] GHSA-h4c5-jq2c-gq8v: Buffer overflow in the International Domain Name (IDN) support in Mozilla Firefox 1
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.
Ubuntu
Mozilla products vulnerability
vendor_ubuntu·2005-09-12
CVE-2005-2871 Mozilla products vulnerability
Title: Mozilla products vulnerability
Summary: Mozilla products vulnerability
Tom Ferris discovered a buffer overflow in the Mozilla products
(Mozilla browser, Firefox, Thunderbird). By tricking an user to click
on a Hyperlink with a specially crafted destination URL, a remote
attacker could crash the application. It might even be possible to
exploit this vulnerability to execute arbitrary code, but this has
not yet been confirmed.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
security flaw
vendor_redhat·2005-09-09·CVSS 7.5
CVE-2005-2871 [HIGH] security flaw
security flaw
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.
No detection rules found.
http://archives.neohapsis.com/archives/fulldisclosure/2005-09/0316.htmlhttp://marc.info/?l=full-disclosure&m=112624614008387&w=2http://secunia.com/advisories/16764http://secunia.com/advisories/16766http://secunia.com/advisories/16767http://secunia.com/advisories/17042http://secunia.com/advisories/17090http://secunia.com/advisories/17263http://secunia.com/advisories/17284http://securityreason.com/securityalert/83http://securitytracker.com/id?1014877http://www.ciac.org/ciac/bulletins/p-303.shtmlhttp://www.debian.org/security/2005/dsa-837http://www.debian.org/security/2005/dsa-866http://www.debian.org/security/2005/dsa-868http://www.gentoo.org/security/en/glsa/glsa-200509-11.xmlhttp://www.kb.cert.org/vuls/id/573857http://www.mandriva.com/security/advisories?name=MDKSA-2005:174http://www.mozilla.org/security/announce/mfsa2005-57.htmlhttp://www.osvdb.org/19255http://www.redhat.com/archives/fedora-legacy-announce/2006-January/msg00004.htmlhttp://www.redhat.com/support/errata/RHSA-2005-768.htmlhttp://www.redhat.com/support/errata/RHSA-2005-769.htmlhttp://www.redhat.com/support/errata/RHSA-2005-791.htmlhttp://www.securiteam.com/securitynews/5RP0B0UGVW.htmlhttp://www.security-protocols.com/advisory/sp-x17-advisory.txthttp://www.security-protocols.com/firefox-death.htmlhttp://www.securityfocus.com/bid/14784http://www.ubuntu.com/usn/usn-181-1http://www.vupen.com/english/advisories/2005/1690http://www.vupen.com/english/advisories/2005/1691http://www.vupen.com/english/advisories/2005/1824https://bugzilla.mozilla.org/show_bug.cgi?id=307259https://exchange.xforce.ibmcloud.com/vulnerabilities/22207https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1287https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A584https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9608http://archives.neohapsis.com/archives/fulldisclosure/2005-09/0316.htmlhttp://marc.info/?l=full-disclosure&m=112624614008387&w=2http://secunia.com/advisories/16764http://secunia.com/advisories/16766http://secunia.com/advisories/16767http://secunia.com/advisories/17042http://secunia.com/advisories/17090http://secunia.com/advisories/17263http://secunia.com/advisories/17284http://securityreason.com/securityalert/83http://securitytracker.com/id?1014877http://www.ciac.org/ciac/bulletins/p-303.shtmlhttp://www.debian.org/security/2005/dsa-837http://www.debian.org/security/2005/dsa-866http://www.debian.org/security/2005/dsa-868http://www.gentoo.org/security/en/glsa/glsa-200509-11.xmlhttp://www.kb.cert.org/vuls/id/573857http://www.mandriva.com/security/advisories?name=MDKSA-2005:174http://www.mozilla.org/security/announce/mfsa2005-57.htmlhttp://www.osvdb.org/19255http://www.redhat.com/archives/fedora-legacy-announce/2006-January/msg00004.htmlhttp://www.redhat.com/support/errata/RHSA-2005-768.htmlhttp://www.redhat.com/support/errata/RHSA-2005-769.htmlhttp://www.redhat.com/support/errata/RHSA-2005-791.htmlhttp://www.securiteam.com/securitynews/5RP0B0UGVW.htmlhttp://www.security-protocols.com/advisory/sp-x17-advisory.txthttp://www.security-protocols.com/firefox-death.htmlhttp://www.securityfocus.com/bid/14784http://www.ubuntu.com/usn/usn-181-1http://www.vupen.com/english/advisories/2005/1690http://www.vupen.com/english/advisories/2005/1691http://www.vupen.com/english/advisories/2005/1824https://bugzilla.mozilla.org/show_bug.cgi?id=307259https://exchange.xforce.ibmcloud.com/vulnerabilities/22207https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1287https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A584https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9608
2005-09-09
Published