Vulnerability CVE-2009-2417
Published: 2009-08-14   Modified: 2012-02-13

Description:
lib/ssluse.c in cURL and libcurl 7.4 through 7.19.5, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) 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.

Type:

CWE-310

 (Cryptographic Issues)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Libcurl -> Libcurl 
CURL -> Libcurl 

 References:
http://curl.haxx.se/CVE-2009-2417/curl-7.10.6-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.11.0-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.12.1-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.15.1-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.15.5-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.16.4-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.18.1-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.19.0-CVE-2009-2417.patch
http://curl.haxx.se/CVE-2009-2417/curl-7.19.5-CVE-2009-2417.patch
http://curl.haxx.se/docs/adv_20090812.txt
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
http://shibboleth.internet2.edu/secadv/secadv_20090817.txt
http://support.apple.com/kb/HT4077
http://wiki.rpath.com/Advisories:rPSA-2009-0124
http://www.securityfocus.com/archive/1/506055/100/0/threaded
http://www.securityfocus.com/archive/1/507985/100/0/threaded
http://www.securityfocus.com/bid/36032
http://www.ubuntu.com/usn/USN-1158-1
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
http://www.vupen.com/english/advisories/2009/2263
http://www.vupen.com/english/advisories/2009/3316
https://exchange.xforce.ibmcloud.com/vulnerabilities/52405
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10114
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8542
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