USN-6435-2: OpenSSL vulnerabilities
25 October 2023
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)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.04
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
Related notices
- USN-6435-1: libssl-dev, libssl-doc, openssl, libssl1.1, libssl1.0.0
- USN-6450-1: libssl-doc, libssl-dev, openssl, libssl3
- USN-6709-1: openssl1.0, libssl1.0.0, libssl1.0-dev
- USN-7018-1: libssl-doc, libssl-dev, openssl, libssl1.0.0