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Ubuntu Security Notice USN-5031-1

Ubuntu Security Notice USN-5031-1
Posted Aug 5, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5031-1 - It was discovered that openCryptoki incorrectly handled certain EC keys. An attacker could possibly use this issue to cause a invalid curve attack.

tags | advisory
systems | linux, ubuntu
SHA-256 | 37e979236c450f3cf42c530d8b0a743c8b714a01b06cb0b9c212165317612b7f

Ubuntu Security Notice USN-5031-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5031-1
August 04, 2021

opencryptoki vulnerability
==========================================================================

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

- Ubuntu 21.04

Summary:

openCryptoki could be made to allow invalid curve attacks if it received a specially
crafted key.

Software Description:
- opencryptoki: PKCS#11 implementation (daemon)

Details:

It was discovered that openCryptoki incorrectly handled certain EC keys.
An attacker could possibly use this issue to cause a invalid curve attack.

Update instructions:

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

Ubuntu 21.04:
libopencryptoki0 3.15.1+dfsg-0ubuntu1.2
opencryptoki 3.15.1+dfsg-0ubuntu1.2

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

References:
https://ubuntu.com/security/notices/USN-5031-1
https://launchpad.net/bugs/1928780

Package Information:
https://launchpad.net/ubuntu/+source/opencryptoki/3.15.1+dfsg-0ubuntu1.2
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