Ubuntu Security Notice USN-5710-1
November 01, 2022
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.10
– Ubuntu 22.04 LTS
Several security issues were fixed in OpenSSL.
– openssl: Secure Socket Layer (SSL) cryptographic library and tools
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.
The problem can be corrected by updating your system to the following
Ubuntu 22.04 LTS:
After a standard system update you need to reboot your computer to make all
the necessary changes.
CVE-2022-3358, CVE-2022-3602, CVE-2022-3786