Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-5894-1: curl vulnerabilities

27 February 2023

Several security issues were fixed in curl.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • curl - HTTP, HTTPS, and FTP client and client libraries

Details

Harry Sintonen and Tomas Hoger discovered that curl incorrectly handled
TELNET connections when the -t option was used on the command line.
Uninitialized data possibly containing sensitive information could be sent
to the remote server, contrary to expectations. This issue was only fixed
in Ubuntu 14.04 ESM. (CVE-2021-22898, CVE-2021-22925)

It was discovered that curl incorrectly handled denials when using HTTP
proxies. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2022-43552)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-5021-1: libcurl3-nss, libcurl4-doc, libcurl4, curl, libcurl4-openssl-dev, libcurl4-nss-dev, libcurl4-gnutls-dev, libcurl3-gnutls
  • USN-5021-2: libcurl3-nss, libcurl4-doc, curl, libcurl4-openssl-dev, libcurl4-nss-dev, libcurl3, libcurl4-gnutls-dev, libcurl3-gnutls
  • USN-5788-1: libcurl3-nss, libcurl4-doc, libcurl4, curl, libcurl4-openssl-dev, libcurl4-nss-dev, libcurl4-gnutls-dev, libcurl3-gnutls

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading