USN-6435-2: OpenSSL vulnerabilities
Publication date
25 October 2023
Overview
OpenSSL could be made to consume resources and cause long delays if it processed certain input.
Releases
Packages
- openssl - Secure Socket Layer (SSL) cryptographic library and tools
Details
USN-6435-1 fixed vulnerabilities in OpenSSL. This update
provides the corresponding updates for Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that OpenSSL incorrectly handled excessively large
Diffie-Hellman parameters. An attacker could possibly use this issue
to cause a denial of service. (CVE-2023-3446)
Bernd Edlinger discovered that OpenSSL incorrectly handled excessively
large Diffie-Hellman parameters. An attacker could possibly use this
issue to cause a denial of service. (CVE-2023-3817)
USN-6435-1 fixed vulnerabilities in OpenSSL. This update
provides the corresponding updates for Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that OpenSSL incorrectly handled excessively large
Diffie-Hellman parameters. An attacker could possibly use this issue
to cause a denial of service. (CVE-2023-3446)
Bernd Edlinger discovered that OpenSSL incorrectly handled excessively
large Diffie-Hellman parameters. An attacker could possibly use this
issue to cause a denial of service. (CVE-2023-3817)
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 | ||
|---|---|---|---|
| 20.04 focal | libssl1.1 – 1.1.1f-1ubuntu2.20 | ||
| openssl – 1.1.1f-1ubuntu2.20 | |||
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