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Ubuntu Security Notice USN-4466-1

Ubuntu Security Notice USN-4466-1
Posted Aug 19, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4466-1 - 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.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2020-8231
SHA-256 | 47be007788d705a459cd99ccf038f03b19371474d3e506d98d242d9a4eb0aa11

Ubuntu Security Notice USN-4466-1

Change Mirror Download
==========================================================================
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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