Ubuntu alert USN-6402-1 (libtommath)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-6402-1] LibTomMath vulnerability
Date:
             
 
Mon, 02 Oct 2023 13:22:01 -0300
Message-ID:
             
 
<20231002162201.GA1660135@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-6402-1
October 02, 2023

libtommath vulnerability
==========================================================================

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

- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

LibTomMatch could be made to execute arbitrary code or
denial of service if it received a specially crafted input.

Software Description:
- libtommath: multiple-precision integer library [development files]

Details:

It was discovered that LibTomMath incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
and cause a denial of service (DoS).

Update instructions:

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

Ubuntu 23.04:
  libtommath1                     1.2.0-6ubuntu0.23.04.1

Ubuntu 22.04 LTS:
  libtommath1                     1.2.0-6ubuntu0.22.04.1

Ubuntu 20.04 LTS:
  libtommath1                     1.2.0-3ubuntu0.1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  libtommath1                     1.0.1-1ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  libtommath0                     0.42.0-1.2ubuntu0.1~esm1

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

References:
  https://ubuntu.com/security/notices/USN-6402-1
  CVE-2023-36328

Package Information:
  https://launchpad.net/ubuntu/+source/libtommath/1.2.0-6ub...
  https://launchpad.net/ubuntu/+source/libtommath/1.2.0-6ub...
  https://launchpad.net/ubuntu/+source/libtommath/1.2.0-3ub...