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CVE-2013-4545

Published: 23 November 2013

cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Notes

AuthorNote
mdeslaur
GnuTLS backend also appears to be affected. Sent mail to
curl-library list.

Priority

Medium

Status

Package Release Status
curl
Launchpad, Ubuntu, Debian
lucid
Released (7.19.7-1ubuntu1.4)
precise
Released (7.22.0-3ubuntu4.4)
quantal
Released (7.27.0-1ubuntu1.5)
raring
Released (7.29.0-1ubuntu3.3)
saucy
Released (7.32.0-1ubuntu1.1)
upstream
Released (7.33.0-1)
Patches:
upstream: https://github.com/bagder/curl/commit/3c3622b6