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Ubuntu 20.04 LTS: USN-4466-1 Critical: Curl Sensitive Exposure

ubuntu
Calendar Grey August 19, 2020
Dist Ubuntu Esm H88
Critical vulnerability in curl on Ubuntu, potentially leaking confidential information during network communications. Immediate upgrade advised.
curl could be made to expose sensitive information over the network.

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.

Topics%20covered

Topics Covered

security advisory Ubuntu curl network issue sensitive exposure

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://ubuntu.com/security/notices/USN-4466-1

CVE-2020-8231

Severity
critical
Lowest
Low
Medium
High
Critical

August 19, 2020

Topics%20covered

Topics Covered

security advisory Ubuntu curl network issue sensitive exposure

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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