==========================================================================
Ubuntu Security Notice USN-4466-1
August 19, 2020
curl vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
curl could be made to expose sensitive information over the network.
Software Description:
– curl: HTTP, HTTPS, and FTP client and client libraries
Details:
Marc Aldorasi discovered that curl incorrectly handled the libcurl
CURLOPT_CONNECT_ONLY option. This could result in data being sent to the
wrong destination, possibly exposing sensitive information.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
curl 7.68.0-1ubuntu2.2
libcurl3-gnutls 7.68.0-1ubuntu2.2
libcurl3-nss 7.68.0-1ubuntu2.2
libcurl4 7.68.0-1ubuntu2.2
Ubuntu 18.04 LTS:
curl 7.58.0-2ubuntu3.10
libcurl3-gnutls 7.58.0-2ubuntu3.10
libcurl3-nss 7.58.0-2ubuntu3.10
libcurl4 7.58.0-2ubuntu3.10
Ubuntu 16.04 LTS:
curl 7.47.0-1ubuntu2.16
libcurl3 7.47.0-1ubuntu2.16
libcurl3-gnutls 7.47.0-1ubuntu2.16
libcurl3-nss 7.47.0-1ubuntu2.16
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4466-1
CVE-2020-8231
Package Information:
https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.2
https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.10
https://launchpad.net/ubuntu/+source/curl/7.47.0-1ubuntu2.16
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