[USN-7278-1] OpenSSL vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7278-1
February 20, 2025

openssl vulnerabilities
==========================================================================

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

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in OpenSSL.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

George Pantelakis and Alicja Kario discovered that OpenSSL had a timing
side-channel when performing ECDSA signature computations. A remote
attacker could possibly use this issue to recover private data.
(CVE-2024-13176)

It was discovered that OpenSSL incorrectly handled certain memory
operations when using low-level GF(2^m) elliptic curve APIs with untrusted
explicit values for the field polynomial. When being used in this uncommon
fashion, a remote attacker could use this issue to cause OpenSSL to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2024-9143)

Update instructions:

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

Ubuntu 24.04 LTS
libssl3t64 3.0.13-0ubuntu3.5
openssl 3.0.13-0ubuntu3.5

Ubuntu 22.04 LTS
libssl3 3.0.2-0ubuntu1.19
openssl 3.0.2-0ubuntu1.19

Ubuntu 20.04 LTS
libssl1.1 1.1.1f-1ubuntu2.24
openssl 1.1.1f-1ubuntu2.24

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
https://ubuntu.com/security/notices/USN-7278-1
CVE-2024-13176, CVE-2024-9143

Package Information:
https://launchpad.net/ubuntu/+source/openssl/3.0.13-0ubuntu3.5
https://launchpad.net/ubuntu/+source/openssl/3.0.2-0ubuntu1.19
https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.24