USN-6429-1: curl vulnerabilities

11 October 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

Jay Satiro discovered that curl incorrectly handled hostnames when using a
SOCKS5 proxy. In environments where curl is configured to use a SOCKS5
proxy, a remote attacker could possibly use this issue to execute arbitrary
code. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04.
(CVE-2023-38545)

It was discovered that curl incorrectly handled cookies when an application
duplicated certain handles. A local attacker could possibly create a cookie
file and inject arbitrary cookies into subsequent connections.
(CVE-2023-38546)

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 23.04
Ubuntu 22.04
Ubuntu 20.04

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

References

Related notices

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