CVE-2009-2417

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductLibcurl
PublishedAug 14, 2009
First seenAug 14, 2009

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
curl libcurl7.4, 7.4.1, 7.4.2, 7.5, 7.5.1, 7.5.2, 7.6, 7.6.1, 7.7, 7.7.1, 7.7.2, 7.7.3, 7.8, 7.8.1, 7.9, 7.9.1, 7.9.2, 7.9.3, 7.9.5, 7.9.6, 7.9.7, 7.9.8, 7.10, 7.10.1, 7.10.2, 7.10.3, 7.10.4, 7.10.5, 7.10.6, 7.10.7, 7.10.8, 7.11.0, 7.11.1, 7.11.2, 7.12, 7.12.0, 7.12.1, 7.12.2, 7.12.3, 7.13, 7.13.1, 7.13.2, 7.14, 7.14.1, 7.15, 7.15.1, 7.15.2, 7.15.3, 7.16.3, 7.17.0, 7.17.1, 7.18.0, 7.18.1, 7.18.2, 7.19.0, 7.19.1, 7.19.2, 7.19.3, 7.19.4, 7.19.5—
libcurl libcurl7.12, 7.12.1, 7.12.2, 7.12.3, 7.13, 7.13.1, 7.13.2, 7.14, 7.14.1, 7.15, 7.15.1, 7.15.2, 7.15.3, 7.16.3—

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