1. Ubuntu Security Notices
  2. USN-5710-1

USN-5710-1: OpenSSL vulnerabilities

Publication date

1 November 2022

Overview

Several security issues were fixed in OpenSSL.

Releases

Packages

  • openssl - Secure Socket Layer (SSL) cryptographic library and tools

Details

It was discovered that OpenSSL incorrectly handled certain X.509 Email
Addresses. If a certificate authority were tricked into signing a
specially-crafted certificate, a remote attacker could possibly use this
issue to cause OpenSSL to crash, resulting in a denial of service. The
default compiler options for affected releases reduce the vulnerability to
a denial of service. (CVE-2022-3602, CVE-2022-3786)

It was discovered that OpenSSL incorrectly handled applications creating
custom ciphers via the legacy EVP_CIPHER_meth_new() function. This issue
could cause certain applications that mishandled values to the function to
possibly end up with a NULL cipher and messages in plaintext.
(CVE-2022-3358)

It was discovered that OpenSSL incorrectly handled certain X.509 Email
Addresses. If a certificate authority were tricked into signing a
specially-crafted certificate, a remote attacker could possibly use this
issue to cause OpenSSL to crash, resulting in a denial of service. The
default compiler options for affected releases reduce the vulnerability to
a denial of service. (CVE-2022-3602, CVE-2022-3786)

It was discovered that OpenSSL incorrectly handled applications creating
custom ciphers via the legacy EVP_CIPHER_meth_new() function. This issue
could cause certain applications that mishandled values to the function to
possibly end up with a NULL cipher and messages in plaintext.
(CVE-2022-3358)

Update instructions

After a standard system update you need to reboot your computer to 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
22.10 kinetic libssl3 –  3.0.5-2ubuntu2
22.04 jammy libssl3 –  3.0.2-0ubuntu1.7

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References

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