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Ubuntu 25.04: OpenSSL Critical Issues and Fixes USN-7786-1

ubuntu
Calendar Grey September 30, 2025
Scroller Ubuntu
Critical vulnerabilities in OpenSSL for various Ubuntu versions; update necessary to prevent potential exploits and DoS attacks.
Several security issues were fixed in OpenSSL.

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)

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu OpenSSL patch

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7786-1

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu OpenSSL patch

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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