[USN-6159-1] Tornado vulnerability

Leonidas S. Barbosa leo.barbosa at canonical.com
Tue Jun 13 16:49:11 UTC 2023

Ubuntu Security Notice USN-6159-1
June 13, 2023

python-tornado vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)


Tornado could be made to redirect users to arbitrary web site if it opened a
specially crafted URL.

Software Description:
- python-tornado: scalable, non-blocking web server and tools - documentation


It was discovered that Tornado incorrectly handled certain redirect.
An remote attacker could possibly use this issue to redirect a user to an
arbitrary web site and conduct a phishing attack by having user access a
specially crafted URL.

Update instructions:

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

Ubuntu 23.04:
  python3-tornado                 6.2.0-3ubuntu0.1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  python-tornado                  4.2.1-1ubuntu3.1+esm1
  python3-tornado                 4.2.1-1ubuntu3.1+esm1

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


Package Information:

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20230613/76d0dd5a/attachment.sig>

More information about the ubuntu-security-announce mailing list