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Ubuntu 21.04 USN-5031-1: Addressing openCryptoki Invalid Curve Attack

ubuntu
Calendar Grey August 4, 2021
Dist Ubuntu Esm H88
The Ubuntu Security Announcement USN-5032-1 warns of a vulnerability in the openCryptoki package that may allow exploitation of invalid signatures. Update your system now!
openCryptoki could be made to allow invalid curve attacks if it received a specially crafted key.

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.

Topics%20covered

Topics Covered

security advisory software update ubuntu invalid curve opencryptoki

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://bugs.launchpad.net/ubuntu/+source/opencryptoki/+bug/1928780

Severity
important
Lowest
Low
Medium
High
Critical

August 04, 2021

Topics%20covered

Topics Covered

security advisory software update ubuntu invalid curve opencryptoki

Package Information

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

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