CVE-2009-4565

N/A Unknown
Published: January 04, 2010 Modified: April 23, 2026
View on NVD

Description

sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://secunia.com/advisories/37998
Source: cve@mitre.org
Vendor Advisory
http://www.sendmail.org/releases/8.14.4
Source: cve@mitre.org
Patch
http://www.vupen.com/english/advisories/2009/3661
Source: cve@mitre.org
Patch Vendor Advisory
http://marc.info/?l=bugtraq&m=126953289726317&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/37998
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/38314
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/38915
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/39088
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/40109
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/43366
Source: af854a3a-2127-422b-91ae-364da2661108
http://security.gentoo.org/glsa/glsa-201206-30.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2010/dsa-1985
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2011-0262.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/37543
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.sendmail.org/releases/8.14.4
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.vupen.com/english/advisories/2009/3661
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
http://www.vupen.com/english/advisories/2010/0719
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2010/1386
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2011/0415
Source: af854a3a-2127-422b-91ae-364da2661108

40 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.8%
74th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

sendmail