CVE-2009-2417
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 3.46% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-310
- Affected
- curl/libcurl · libcurl/libcurl
- Source
- secalert@redhat.com
References
- http://curl.haxx.se/CVE-2009-2417/curl-7.10.6-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.11.0-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.12.1-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.15.1-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.15.5-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.16.4-CVE-2009-2417.patchPatch, Vendor Advisory
- http://curl.haxx.se/CVE-2009-2417/curl-7.18.1-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.19.0-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.19.5-CVE-2009-2417.patchPatch
- http://curl.haxx.se/docs/adv_20090812.txtVendor Advisory
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://secunia.com/advisories/36238Vendor Advisory
- http://secunia.com/advisories/36475
- http://secunia.com/advisories/37471
- http://secunia.com/advisories/45047
- 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/2009/2263Vendor Advisory
- 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
- http://curl.haxx.se/CVE-2009-2417/curl-7.10.6-CVE-2009-2417.patchPatch
- http://curl.haxx.se/CVE-2009-2417/curl-7.11.0-CVE-2009-2417.patchPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.