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[USN-7786-1] OpenSSL vulnerabilities

Posted on 30 September 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7786-1
September 30, 2025

openssl, openssl1.0 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in OpenSSL.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools
- openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools

Details:

Stanislav Fort discovered that OpenSSL incorrectly handled memory when
trying to decrypt CMS messages encrypted with password-based encryption. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2025-9230)

Stanislav Fort discovered that OpenSSL had a timing side-channel in SM2
signature computations on ARM platforms. A remote attacker could possibly
use this issue to recover private data. This issue only affected Ubuntu
25.04. (CVE-2025-9231)

Stanislav Fort discovered that OpenSSL incorrectly handled memory during
HTTP requests when "no_proxy" environment variable is set. An attacker
could possibly use this issue to cause a denial of service. This issue only
affected Ubuntu 25.04. (CVE-2025-9232)

Update instructions:

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

Ubuntu 25.04
libssl3t64 3.4.1-1ubuntu4
openssl 3.4.1-1ubuntu4

Ubuntu 24.04 LTS
libssl3t64 3.0.13-0ubuntu3.6
openssl 3.0.13-0ubuntu3.6

Ubuntu 22.04 LTS
libssl3 3.0.2-0ubuntu1.20
openssl 3.0.2-0ubuntu1.20

Ubuntu 20.04 LTS
libssl1.1 1.1.1f-1ubuntu2.24+esm1
Available with Ubuntu Pro
openssl 1.1.1f-1ubuntu2.24+esm1
Available with Ubuntu Pro

Ubuntu 18.04 LTS
libssl1.0.0 1.0.2n-1ubuntu5.13+esm2
Available with Ubuntu Pro
libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm6
Available with Ubuntu Pro
openssl 1.1.1-1ubuntu2.1~18.04.23+esm6
Available with Ubuntu Pro
openssl1.0 1.0.2n-1ubuntu5.13+esm2
Available with Ubuntu Pro

Ubuntu 16.04 LTS
libssl1.0.0 1.0.2g-1ubuntu4.20+esm13
Available with Ubuntu Pro
openssl 1.0.2g-1ubuntu4.20+esm13
Available with Ubuntu Pro

Ubuntu 14.04 LTS
libssl1.0.0 1.0.1f-1ubuntu2.27+esm11
Available with Ubuntu Pro
openssl 1.0.1f-1ubuntu2.27+esm11
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-7786-1
CVE-2025-9230, CVE-2025-9231, CVE-2025-9232

Package Information:
https://launchpad.net/ubuntu/+source/openssl/3.4.1-1ubuntu4
https://launchpad.net/ubuntu/+source/openssl/3.0.13-0ubuntu3.6
https://launchpad.net/ubuntu/+source/openssl/3.0.2-0ubuntu1.20

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