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USN-5587-1: curl vulnerability

1 September 2022

curl could be denied access to a HTTP(S) content if it recieved a specially crafted cookie.

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Releases

Packages

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

Details

Axel Chong discovered that when curl accepted and sent back
cookies containing control bytes that a HTTP(S) server might
return a 400 (Bad Request Error) response. A malicious cookie
host could possibly use this to cause denial-of-service.

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 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

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Further reading