1. Ubuntu Security Notices
  2. USN-6239-1

USN-6239-1: ECDSA Util vulnerability

Publication date

20 July 2023

Overview

ECDSA Util could be made to accept forged signatures.

Releases

Packages

  • ecdsautils - ECDSA elliptic curve cryptography command line tools

Details

It was discovered that ECDSA Util did not properly verify certain
signature values.
An attacker could possibly use this issue to bypass signature
verification.

It was discovered that ECDSA Util did not properly verify certain
signature values.
An attacker could possibly use this issue to bypass signature
verification.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.04 jammy ecdsautils –  0.3.2+git20151018-2+deb10u1build0.22.04.1
20.04 focal ecdsautils –  0.3.2+git20151018-2+deb10u1build0.20.04.1
18.04 bionic ecdsautils –  0.3.2+git20151018-2ubuntu0.18.04.1~esm1  
16.04 xenial ecdsautils –  0.3.2+git20151018-2ubuntu0.16.04.1~esm1  

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.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›