Ubuntu Security Notice 3262-1 - It was discovered that curl incorrectly handled client certificates when resuming a TLS session. A remote attacker could use this to hijack a previously authenticated connection.
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Ubuntu Security Notice USN-3262-1
April 20, 2017
curl vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
Summary:
Applications using curl could allow unintended access over the network.
Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries
Details:
It was discovered that curl incorrectly handled client certificates when
resuming a TLS session. A remote attacker could use this to hijack a
previously authenticated connection.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
curl 7.52.1-4ubuntu1.1
libcurl3 7.52.1-4ubuntu1.1
libcurl3-gnutls 7.52.1-4ubuntu1.1
libcurl3-nss 7.52.1-4ubuntu1.1
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3262-1
CVE-2017-7468
Package Information:
https://launchpad.net/ubuntu/+source/curl/7.52.1-4ubuntu1.1
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