USN-6663-3: OpenSSL update
23 May 2024
Add implicit rejection in PKCS#1 v1.5 in OpenSSL.
Releases
Packages
- openssl - Secure Socket Layer (SSL) cryptographic library and tools
Details
USN-6663-1 provided a security update for OpenSSL.
This update provides the corresponding update for
Ubuntu 24.04 LTS.
Original advisory details:
As a security improvement, OpenSSL will now
return deterministic random bytes instead of an error
when detecting wrong padding in PKCS#1 v1.5 RSA
to prevent its use in possible Bleichenbacher timing attacks.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 24.04
After a standard system update you need to reboot your computer to make
all the necessary changes.