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CVE-2013-4545

Publication date 23 November 2013

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
curl 13.10 saucy
Fixed 7.32.0-1ubuntu1.1
13.04 raring
Fixed 7.29.0-1ubuntu3.3
12.10 quantal
Fixed 7.27.0-1ubuntu1.5
12.04 LTS precise
Fixed 7.22.0-3ubuntu4.4
10.04 LTS lucid
Fixed 7.19.7-1ubuntu1.4

Notes

mdeslaur

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl