CVE-2010-2074

Summary

CVECVE-2010-2074
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-06-16 20:30:02 UTC
Updated2026-04-29 01:13:23 UTC
Descriptionistream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Risk And Classification

Primary CVSS: v2.0 6.8 from [email protected]

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

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application W3m W3m 0.5.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
SecurityTracker.com Archives - w3m NULL Character Flaw in Common Name Field Lets Remote Users Spoof Certificates af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
[security-announce] SUSE Security Summary Report: SUSE-SR:2010:014 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
[SECURITY] Fedora 12 Update: w3m-0.5.2-17.fc12 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
osvdb.org/65538 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Red Hat update for w3m - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
w3m SSL Certificate NULL Character Processing Vulnerability - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
oss-security - CVE Request: w3m does not check null bytes CN/subjAltName af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
W3M NULL Character CA SSL Certificate Validation Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report